https://bugs.winehq.org/show_bug.cgi?id=56765
Ken Sharp imwellcushtymelike@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|Wine compiled with the new |Steam black screen with new |wow64 mode can’t run stream |WoW64 mode |without dxvk | Keywords| |download Component|d3d |-unknown URL| |https://cdn.cloudflare.stea | |mstatic.com/client/installe | |r/SteamSetup.exe
--- Comment #1 from Ken Sharp imwellcushtymelike@gmail.com --- Is it a black screen, or is it flickering/badly rendered?
Disabling GPU acceleration works around that (Bug 47331) and it is identical behaviour to the normal Wine64.
What workarounds are you using, given Steam doesn't work without workarounds?