Bro! I am also playing Rivals 2 on linux! theres at leasts 2 of us! I just use a keyboard, but this is one of the last things keeping my brother on windows, he refuses to use anything but a GCC.

I started with EndeavourOS also (earlier this year) and it has been amazing. Also only little bit of Linux knowledge beforehand. Honestly think using a terminal centric distro is helpful for learning.

never got to play this, but I have been playing Dune: Spice Wars which has been pretty fun. Might not be that similar but Dune universe is excellent for these type of games for sure.

An incredible port, plays amazing on mouse and keyboard.

Perfect Dark, N64