Linux

Debian with XFCE here - I do just have a single monitor though so I suppose I'm not running into complicated display issues anytime soon. It has been extremely solid, I forget to update my system for months on end and then remember to do it one day and it just works. XFCE is boring like Debian but that's why I like it: it stays out of my way.

I work on RHEL at my day job so Linux isn't just a hobby for me, and I love being free from Windows. Honestly the only thing I keep a windows VM around for is an installation of Adobe Acrobat PDF reader because I'm too lazy to set up signatures on Linux since I don't sign that many documents anyway. And maybe a couple of windows servers from a few keys I've got lying around to learn AD on.

Mint Cinnamon has been great for me.

It is fully featured right out of the box and is a great drop-in replacement for windows. I will without a doubt use it when upgrading family members who are about to lose win10 support.

It is based off the popular Debian -> Ubuntu distros, and is very popular itself. This is good when it comes to quickly finding existing answers to specific questions. And of course they disabled the iffy stuff from ubuntu (snaps) while supporting flatpak.

I’m a software engineer who uses the command line all day, and I use Mint at work and at home. You see, even though the distro is a polished, full featured, and “easy” option, it is still Linux. So it is not locked down and you can still do what you want with your computer.

It won’t teach you to configure your system from the ground up like Arch might, instead it starts you off in a complete well-configured state and you can leave it alone or change it.

I recently made the switch from Windows to Linux on my gaming desktop and it's been a nearly flawless transition. I've been running Pop_OS without problems. If you have an AMD video card you might want to check Bazzite for a gaming oriented Linux distro. Any distro should allow you to use a different desktop, so which GUI to use is up to you. KDE Plasma has a lot of skins to choose from and is a pretty easy transition from Windows. You don't even have to stick with a single desktop environment. I currently choose between the default Pop_OS or Plasma depending on my mood or use case.

Mint is great as long as you don't care about HDR or Wayland. Seeing as you don't want Arch and Ubuntu is being a pain in the ass for you I'd say give Debian Testing a try. It has the newest packages unlike standard Debian. You can choose KDE, Cinnamon, or something else. I hear people constantly reccommending OpenSuse but I've never tried it so I can't comment. If you just want to game and don't care about much else then Bazzite is pretty great. Nobara is also popular. PopOS kind of sucks in my experience, I'd avoid it unless you know you'd like it.

Edit: Forgot to clarify HDR support requires KDE Plasma or GNOME. Plasma has better support for it right now.

Fedora Atomic (Fedora Silverblue).

You can choose the KDE spin if you want.

Bazzite is Fedora Atomic but for a more gaming focus.

I use Debian with XFCE, but while I love XFCE, it might not be everyone’s thing. If you do give it a try, make sure to use Whisker Menu instead of the default app menu, and also set keyboard mappings to your liking.

P.S: Ubuntu’s pushing for Snaps, not Flatpaks. Flatpaks are actually pretty good - makes it really easy to install a newer software version when the one in Debian repos doesn’t suffice.

Also, it’s not only Ubuntu pushing for Wayland - most distros or DEs either have it working or are working towards it (there are some exceptions). XFCE is still on xorg, but working on Wayland. The problem is xorg is on life support and not getting a lot of new features.

Pop OS!!

Just ditched windows about 2 weeks ago and finally made the full time switch to Manjaro and am absolutely loving it

Mint is fine. Rather than changing distros, rather keep using it and configuring it the way you want it. For the most part, GNU/Linux is GNU/Linux is GNU/Linux and many popular distributions are largely the same.

After trying out dozens of distros for years I didn't want to deal with stability issues and troubleshoot odd problems anymore. I reinstalled Mint years almost 10 ago. Mint has gotten significantly better and more stable with each release since.

Now I only use 3 distros on a regular basis. Mint as a desktop OS, Raspberry Pi OS, and Debian (with Cinnamon) for a server running software that requires Debian for support. Debian was far more difficult to configure than Mint even on the new Dell laptop being used as a server.

I still try out other distros occasionally in VMs and using Live USBs, but still haven't found anything that works as well on my hardware and for my needs as Mint.

I use mint on my daily-driver/gaming-rig/mediaserver. I've been a Linux user for 20 years, eventually you just want a normal distro with sane defaults. Mint is wonderful.

Mint is amazing and frankly if its working for you then I think you've found it. I stayed on mint for a long time until I relented to a nagging friend and tried out NIxOS and was amazed. If you have the technical skills and feel confident to push through the inital difficulty its well well worth it.

So whats the good?

1. Reproducibility. Ever been annoyed that someone cant help you because they either dont have the time or just cant reproduce the problem? Its no longer an issue. Dependancy is managed by design so configuration and state is transferable with as little as only two files.
2. Declarative. Best way to decibe this is all the benefits of Arch and zero of the problems. Declare your configuration in a file and then have a life. Ive never saved so much time before with any distro. Imaging installing windows, configuring the OS, installing apps, configuring them only once, ever, never having to do that again. Reinstalls go straight back to the way you like it.
3. Reliable. Ive never had a linux distro so stable. The risk and pain of change is a thing of the past.
4. Largest and most up to date repo. Its simply unmatched.
5. The list goes on to other areas like security, scalability and much more but lets leave it there.

Whats the bad?

1. Difficulty of entry. You need to have basic understanding on writting basic code to some degree as you define your config as a simple text file. I recommend vimjoyer on youtube he has some great simple intro videos that will help here.
2. Using apps not in the repo. You will need to step up your config skills here to install that weird app you want. That is only unless you cant wait. If you have time the community is fantastic, a quick app request on the repo has a great chance of being picked up by some legend and added to the repo officially.
3. The wiki, its no Arch wiki, thankfully you dont really need it. The community maintains a bunch of configs for hardware and apps on the repo which is weirdly not advertised half as much as it should be. Alternatively just search github for configs from other nixians.

They're all basically the same dude. They're all GNU/Linux. You have 2 main distros: Debian and Arch. Fedora is a kind of inbetween, there's SUSE as well, but mostly it's all Debian and Arch.

Mint, Ubuntu, etc ... it's all just Debian. Use Debian.You can use KDE plasma or Gnome or i3 or whatever you want.

Mint is a great first choice, and you should be able to do lots with it, but there's others you might want to at least be aware of, if gaming is important.

If you don't care about customization at all, Bazzite (Fedora). While you can update typical things like panels, icon styles, window decorations, etc., making changes to things like SDDM requires a little bit more creativity.

That's because it's atomic (mostly immutable). You don't have to worry about a bad update breaking your system, since you can just rpm-ostree rollbackand get back to it. The downside is that atomic distros have a different way they're designed, so learning how to work with them has a little bit of a learning curve, but it's worth learning, imo.

CachyOS (Arch). Kinda the hot thing right now. It's Arch but oriented towards gaming, content creation, and optimized computing. You'll have full customization abilities like a traditional distro, access to the AUR, and some really nice kernel and scheduler tweaking tools.

Pop!_OS Cosmic (Ubuntu). Pop!_OS has been a longtime popular choice, but they're currently throwing all their effort into their brand new Cosmic desktop environment, so I'd wait until everything is at least in Beta. It looks great, though, and I think it's going to set some new standards for user experiences.

I was about to say that you should learn the "ins and outs" of Linux first before choosing a distro until I've noticed these part(s) of your post.

I’ve been toying with Linux on and off for almost 20 years now.

I’m comfortable in the command line

20 years is more than enough time for a user to use Linux properly. And with that in mind, well... you are overthinking it -- just go with whatever you want, really.