Selfhosted

Way over-budget for your taste I guess but I still wanted to make a note here for representation sake. Look into the brand Zidoo. I have Zidoo Z9X 8K, it's the best client I could dream of! ~250$

Cons:

• Android based (outdated AF but still)
• Maybe not so secure (http server always on while the device is on, atm)

Pros:

• Very good support of Dolby Vision, 4K (8K maybe?)
• Very pretty, both hardware and software very polished IMO
• The remote is glorious, tactile with backlight
• Lots of other cool things
• Very snappy Android experience
• it just works™
• The audio downmixing works great, compared to the Google TV which was very bad
• First party Jellyfin support among others

I use Chromecast with android TV, it's about perfect with jellyfin, and if I were to domit again I'd probably spend the little extra for the 4k model even though my TV is 1080p (more horsepower). You can run a different homescreen to somewhat degoogle it.

Probably not what you're looking for given what you've lined up here, but I live and breathe with it every day and it's great, and as an added benefit you can cast from a lot of services or websites as well.

👋😢

I've personally been using a raspberry pi with a Bluetooth mouse and keyboard. I just run jellyfin in Firefox and navigate with the mouse - the keyboard rarely ever being necessary. I was able to increase the icon size so it's acceptable on a tv and bookmark any streaming websites I use. It's certainly not as clean as using something like an apple tv, but it's serviceable and I don't have to fiddle with plugins like when I tried Kodi. Honestly though, apple tv probably fulfills what you're looking for like others have said.

It's surprising how slow open source is on replicating Roku. So many manufacturers could be using Linux to bypass androidTV and RokuOS bullshit. I suppose AndroidTV is good enough even despite that.

My plan is to use the $20 Onn (Walmart store-brand) Android TV box LTT recommended as being eminently jailbreakable about a year ago, but I haven't actually gotten around to hooking it up yet so I can't authoritatively endorse it.

3. If you do not want stuttering, use a graphics card. Higher energy consumption but you can play everything

If it's an option, the Xiaomi mi box it's a cheap android TV device that plays probably everything. Costs around 60 euro in eu. If not you coul always go for Google TV with a custom launcher to block stock android launcher ads.

It seems like the most obvious answer is to build your own with a Pi. Run Linux and then install any player you want. You could even use the Pi as the head then network your storage.

Also, FWIW, the latest Apple TV hasn’t seen an upgrade in about 3-4 years, so if you do go that route, bear that in mind. A new model is coming sooner than later (hopefully this year).