[Bug 57412] New: Steam launcher is black

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57412

Bug ID: 57412
           Summary: Steam launcher is black
           Product: Wine
           Version: 9.21
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: winewayland
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 77398
  --> https://bugs.winehq.org/attachment.cgi?id=77398
steam launcher black, wayland log

When starting the steam windows version with wine 9.21, with the waylanddriver,
the launcher or better said steam is black and takes up the whole screen.
I cant change the size of the window. Its always fullscreen and just black.

When i launch it with x11 then steam look normal except that the store page is
black.
It gets visible for a fraction of a second whenever i move over a hyperlink or
button and so on.

here is the log of the x11 test: https://file.io/WoQksUpWYv7e