I’ve tried using ‘env OPENSSL_ia32cap=~0x20000000 %command%’ as Launch Options in Steam app, but there was no change appearing or in logs.

Does not run with Proton Experimental or last Proton 9.0-3. When I start the game, the start button turns blue and after about two minutes it turns green again. I can see from the console that the processes are building up first, the interface is being created and methods are being called. After ‘Uploaded AppInterfaceStats to Steam’ all processes are removed again and that’s it.