The itch launcher that installs through the itch-setup script, crashes on launch. A grey window pops up and goes away immediately. I am on Manjaro KDE. I tried installing from AUR and running the script directly from the itch.io/app webpage, same results.

Also, is there a way to run games without the Itch launcher? Thank you. :)

Yes, of course. You can run almost any game without the launcher. Most creators don't require it. Simply download them from the site, unpack and run.

my launchers and shows a white screen for a second then closes i think its because i installed java because it works fine when java is not installed but then i cant play games that have jar files