A lot of games on itch.io are written in LÖVE, and even if they're built specifically for Windows, the Linux love binary is able to parse out the game data and play the game.
Installing the right version of the LÖVE runtime can be a bit of a chore, unfortunately (which is why packaged builds are so much nicer).
You could also try installing the itch.io app which makes it somewhat easier to browse games based on OS compatibility.
All that said you should also consider a friendlier attitude when you come here and ask for things. Nobody owes you anything, and complaining about how "brainstuck" people are isn't a great way to make friends.