FYI, steam-native on Arch is unsupported by Steam. Use it at your own risk.
Irrelevant. This problem only goes together with another problem. Everything is working now.
https://github.com/ValveSoftware/steam-for-linux/issues/8468
Could be related to https://github.com/ValveSoftware/steam-runtime/issues/364
Your system information
Please describe your issue in as much detail as possible:
Proton should have started or the missing files should have been downloaded. Clearing the download cache and checking local files didn't help, Steam is not downloading the missing files. The basic SLR weighs 11kb and the Scout and Soldier weigh 600 mb. I don't know if this is normal, but the files don't download when checked.
This happened after completely reinstalling Steam and Proton.
When running Steam Runtime, the same behaviour that I had before reinstallation, on Steam Native, occurs. Also, a bunch of child processes are created, games won't start and Steam can't be closed.
https://github.com/ValveSoftware/steam-for-linux/issues/8468
Steps for reproducing this issue: