List of supported devices: https://wiki.postmarketos.org/wiki/Devices
Last commit to two percent was a year ago.
You can find a very nice list of games that fit your requirements here:
It’s to scare away proprietary firmware
It works outside of NixOS too! Just need to have the nix package manager installed.
I can’t beleive they got Jim Whitehurst as the next ceo
There was a fork of gimp with this name, but sadly abandoned
https://www.geeksmint.com/glimpse-a-fork-of-the-gimp/