Hello @ChildishGiant, https://gist.github.com/ChildishGiant/1b702c968de2cdd003c8f0454b1406a9#file-steam-runtime-diagnostics-L926-L940 is the section to focus on. Your system does not have a 32 bit Vulkan driver installed. Add the lib32-vulkan-radeon system package and retest.
That worked perfectly! My CPU is 64bit but I guess the app isn't? Either way, thank you for the help ❤️
Nothing extracted yet.
Compatibility Report
System Information
Full system information report
Proton log: steam-2486750.log
I confirm:
Symptoms
When launched the app does nothing for a bit and then briefly shows a unity crash window before closing.

Reproduction
🤷🏻♀️ Happens every time on this install but worked on my previous Fedora install.