I've noticed this with proton 7.0.1 and Experimental.
I launch steam with a STEAM_COMPAT_MOUNTS=/mnt/STORE2, but if proton is updated this seems to break and I have to close and relaunch steam for it to rehook.
Hello @ryanayoung, this reads like a Steam client issue rather than an issue with Proton itself.
proton 7.0
STEAM_COMPAT_MOUNTS=/mnt/STORE2,
I've noticed this with proton 7.0.1 and Experimental.
I launch steam with a STEAM_COMPAT_MOUNTS=/mnt/STORE2, but if proton is updated this seems to break and I have to close and relaunch steam for it to rehook.