Your system information

• Steam client version (build number or date): 1709846872
• Distribution (e.g. Ubuntu): Ubuntu 22.04.4 LTS
• Opted into Steam client beta?: [Yes/No] No
• Have you checked for system updates?: [Yes/No] Yes
• Steam Logs: [generate by running this command in a terminal tar -zcvf ~/Desktop/steam-logs.tar.gz ~/.steam/steam/logs]
  steam-logs.tar.gz
• GPU: Nvidia GeForce RTX 2070

Please describe your issue in as much detail as possible:

Describe what you expected should happen and what did happen. Please link any large code pastes as a Github Gist

When Settings > Interface > Enable GPU accelerated rendering in web views (requires restart) is enabled, Steam will open showing just a black window:

The issue goes away when GPU rendering is disabled, BUT:

• The menus have glitches rendering (they flicker when opening).
• Big Picture is unusable, as it goes below 1fps.

I did some testing, it seems that GPU rendering only works with a compositor:

• GNOME
• Mate + Marco (built-in: Xpresent)

and breaks with:

• Mate + Marco (No compositor)

Interestingly, if Steam is open with Marco (built-in: Xpresent) active, things work, ever after switching back to Marco (No compositor). The issue seems related to some Steam initialisation when no compositor is running.

There's good reason to not run a compositor, mainly related to very noticeable input / GUI lag.

It seems various other similar bugs were reported:

https://github.com/ValveSoftware/steam-for-linux/issues/10578
https://github.com/ValveSoftware/steam-for-linux/issues/10561
https://github.com/ValveSoftware/steam-for-linux/issues/10557
https://github.com/ValveSoftware/steam-for-linux/issues/10553
https://github.com/ValveSoftware/steam-for-linux/issues/10543

Which may all have a similar root cause.

Steps for reproducing this issue:

1. Open a Mate session.
2. Open MATE Tweak > Windows > Window Manager and select Marco (No compositor)
3. Open Steam: the window will be all black. If big picture is open, it will also be all black (but full screen).