priapus

Most of what you enumerated is not a terminal emulator job.

Says who? You aren’t the arbiter of what software gets to handle each job.

Tmux does a worse job than Wezterm while being more complex, a pain in the ass to configure, and feeling less native than just using the built-in tabs and panes of my terminal. Ive also had it break the output and interfere with the keybinds of many apps. Why the hell should I install and configure an extra tool when Wezterm does what I need perfect?

And if you want image rendering, what a hell you use TUI for this?

Because I like using a TUI? I do the large majority of my work in my terminal, so why should I swap out of it to look at a picture when Wezterm does it just fine? More importantly, why do you give a fuck what tools somebody uses if they work for them?

I dont give a shit about “Unix philosophy”, Wezterm works better for me at all of these tasks than any other options.

GUI programs can also be controlled with keyboard.

I have never seen a GUI file manager with the same level of control using a keyboard as the average TUI file manager.

Multiplexing, remote multiplexing, shell integration, SSH integration, image rendering, ligatures, image rendering (mainly for TUI file managers like Yazi), support for font styling, scrollback searching, persistent sessions.

Many of these might not matter to you, but I use a lot of these features very frequently, especially remote multiplexing which only Kitty and Wezterm do AFAIK.

I also paricularly like Westerns feature where you can press a keybind and itll show two character flags over all the links and paths currently being displayed, and you type the flag to copy it. Let’s me avoid switching my hand over to my mouse.

You can just go test it out yourself. Compare using a TUI in a hardware accelerated terminal to one that isnt. If you use a lot of TUIs or very dynamic CLIs it makes a very noticeable difference

I dont see anything in your post that isnt already possible on Linux. OBS and GPU-Screen-Recorder both work great, I dont know what features could be needed that they dont offer.

Gamescope is capable of upscaling games with FSR. It doesnt support as many upscaling options as Magpie, but clearly the capability is there and not restricted by anything inherent to Linux.

Whenever you try to play something that needs to be transcoded Jellyfin will save the ffmpeg log. That should hopefully give you the info you need.

If the error isnt clear, share your hardware info and transcoding settings.