vkBasalt VS steamtinkerlaunch

there is vkbasalt for image sharpening. i don't know if it'll provide the image you want, but you can configure it and see if it fits your needs.

There is a alternative for Linux called vkBasalt. I haven't used it myself, yet, so I don't know how well it works. Your distro may have a package for it.

In the meantime, you can Generate a LUT yourself and apply it to games using ReShade or vkBasalt, but it doesn't apply to the system as a whole, takes a bit of work to use with each game, and there are certain games that won't work with it at all (rendering OpenGL games through Zink might help, but there are still gaps in its coverage afaik). All that effort is not for the faint of heart, lol.

The solution: vkBasalt

In the ticket there is also someone suggesting vkBasalt as a replacement.

The easiest way to do this on linux is to use vkbasalt with goverlay.

I haven't used it myself but steamtinkerlaunch is definitely your best bet. It lets you easily set up Mod Organizer 2 or Vortex directly on your Deck. The quite extensive wiki will provide more information than I possibly could.

For any problems, suggestions and contributions you might have, please use the issue tracker (which was the preferred way already before)

Tinker Launcher is the easiest way to do it. There is also a third party Linux "port" of MO2 you can install. Tinker Launcher is my preferred method. ProtonupQT is not where you get it from. https://github.com/frostworx/steamtinkerlaunch/wiki/Installation

Another app / set of scripts I have found is https://github.com/frostworx/steamtinkerlaunch.

https://github.com/frostworx/steamtinkerlaunch/tree/mo2-overhaul branch.

Yes you can use mods/mod managers with Steam Tinker Launcher