Daily driving EndeavourOS for over a year, game daily with no issues. Command line updating isn’t a big deal, just
sudo pacman -Syu && yay -SyuAlias it or use a terminal like quake that disappears. If you want yay to just do it’s packages use -Sua instead.
My PS5 controller worked out of the box.
The COD2 single-player campaign is good. Any of the boomer shooters like Doom, System Shock. Far Cry, Arma, maybe UT.
City Connection, Bugs Bunny’s Crazy Castle. While neither are co-op my mom and took turns playing crazy castle on the nes when I was a kid and we beat it. Core memory right there.
I think Tetris or Doctor Mario had 2 player modes but I’m not sure.
Does Sonic Spinball on the Genesis have multiplayer?