Asklemmy

Firefox, Neovim, Pass (password store) and Wezterm. I heavily use all four of them.

I also need to give a special mention to Aegis Authenticator on Android.

vim

Neovim. It's an awesome editor and it has a great community and ecosystem.

For games:

• Anuto TD (found a few days ago, isn't super feature rich but still fun to kill time)

• Mindustry (never played a game like it before, ended up supporting by buying it on Steam)

• Supertuxkart (I love how many custom add-on karts and tracks I have)

For non-games:

• Termux (allows me to get apk files and install Revancify for add free yt)

• VLC (I don't mind slow updates and have yet to switch mostly because I can't find anything better that isn't more complicated than it needs to be and/or is closed source)

• KDE Connect (I have almost always had problems with moving files from and to my desktop via cord)

I'd include something like Linux, but I personally feel that's kinda cheating because of how large it is compared to the others.

yay

Suricata

I have used a lot of stuff over the years but my favorite would have to be a little command line program called cowsay. It takes whatever text you feed it and puts it in a speech bubble above a cow, hence the name.

Linux, of course. But another one that I use all the time, and love to death, is SageMath. It's the perfect blend of mathematics and programming for me.

Currently OBS and Motrix

Hard to answer but maybe Haiku or GNU Emacs

Definitely OpenFOAM. It competes with commercial software that costs thousands of dollars.

https://www.kicad.org/

I’ve been liking Digikam and Rawtherapee (which is an awful name for the record) for photo gubbins.

Right now, it's Warpinator. Makes at-home wireless file transfers so damn SIMPLE.

Helix text editor.

Qemu/kvm

Qgis, Firefox! Comes top of mind