Steam Client GUI not opening

[Singustromo]

Your system information

• Steam client version (build number or date): 1726604483
• Distribution (e.g. Ubuntu): Void Linux
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: https://0x0.st/Xg8l.tar.gz/steam-logs.tar.gz
• GPU: AMD

Please describe your issue in as much detail as possible:

The steam client has been working under Void as expected for years. Recentely it just stopped opening the main window. I haven't changed my hardware, maybe a specific package update was the cause. The processes are still running and a thread of the steamwebhelper is at 100%. I left it running for ~30 minutes just to make sure it's not an unlogged update without a finding.

This also happens when I don't "sandbox" the home directory via environment variables. I've also tried to delete $HOME/.steam* and $HOME/.local/share/steam/* with the exception of the steamapps directory and reinstalled steam. After that, the client grabs the bootstrap files of around 400MB and would then behave as explained above.

Steps for reproducing this issue:

I am just executing Steam.

[Singustromo]

I found out by surprise that the steamwebhelper continuously writes crash dumps to /tmp/dumps/completed up to a point where it fills up the /tmp mounted partition

lsof +r2 | grep completed
steamwebh 10864                 user    3r      DIR               0,43    152520      102 /tmp/dumps/completed
steamwebh 10864 10865 steamwebh user    3r      DIR               0,43    152520      102 /tmp/dumps/completed
steamwebh 10864 10866 steamwebh user    3r      DIR               0,43    152520      102 /tmp/dumps/completed

Here are some of those crash dumps: https://0x0.st/XgqT.7z/steamwebhelper_crashdumps_11305.7z