Works for me (also on Arch btw)
Steam
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Useful tools:
SteamDB
SteamCharts
Issue tracker for Linux version of Steam
If you haven't found a solution as of yet, passing the -vgui
flag to steam on launch fixed it for me. This launches Steam in the old UI, which seems to be a workaround for the time being.
I'm not entirely sure what the core issue is, the consensus from what I've read so far seems to point to a Nvidia driver issue introduced in a recent update.
I installed Fedora and steam works but Bottles and Lutris don't.
I wanted to make a clean Linux install so I could also see if the problem persisted on another distro. So from Arch to Fedora the problem is still there, I believe it comes from Wayland/Nvidia/Steam which have issues since the last Steam. update but I can still play windows games on Bottles/Wayland/Nvidia.