Did itch say anything about firejail?
if so, launch ror directly
1.1: go to game page
1.2: click settings, manage, open folder in explorer
1.3: right click-->open in terminal
1.4: run this: chmod +x ./RunRoR && ./RunRoR
If you get an error about shared libraries, switch versions
2.1: go to game page
2.2: click settings, manage, switch version
2.3: select version from November 28 (that's the latest one I could run, otherwise I get error, which is in bad.txt)
2.4: try launching from itch, otherwise, launch directly (excluding chmod +x ./RunRoR &&
)
If you have to run RoR directly, I've attached a script.sh.zip(extract it wherever) to easily launch it without terminal(click "run" if you get dialog)
If you don't have RoR installed in the default directory, replace ~/.config/itch/apps/rigs-of-rods-dev/
with wherever you installed it(open folder in explorer, click top bar, and copy that string)