Same happened to me, if I just new about this... Nothing I tried fixed it.
https://gist.github.com/NoXPhasma/dbb62b650339eda18402f8567d78746e
My only fix was a complete removal of Steam FYI. Then a totally fresh install.
That sounds terrible.
@LiamDawe Reinstalling the Steam data fixed it for me as well. And it went much less painful than expected. Most settings were as before and no Windows games have been removed due to the fact Steam Play was not enabled for all titles.
Here is the workaround that worked for me (I'm not sure removing steam authenticator is mandatory)
Your system information
Please describe your issue in as much detail as possible:
After my shader cache problem https://github.com/ValveSoftware/steam-for-linux/issues/8088 I cleared the Steam download cache. Since then, I have to login on every Steam launch.
System info: https://gist.github.com/LiamDawe/e4601259bc103190c31dcd97d033b354
Steps for reproducing this issue: