Linux Issues on Steam

Hi,
After the update every game runs smoothly natively and the issue seemed fixed. However, yesterday I was not able to launch the latest hosted game, “The Passenger”.
I’ve tried the usual stuff (uninstall, reinstall, check files integrity etc) and I even tried running it with Proton (newever and older versions alike), but I was not able to launch it.

To be more precise, if I try to launch it natively nothing happens, while if I try with Proton a blank screen appears with an error message (it mentions error code 77779).
I’m using Ubuntu 20.04, if that can help.

Am I the only one experiencing this? Was someone else able to run it on Linux?