I also have been affected by this bug. Firefox browser's gpu acceratation feature is unusable on x11 session.
My GPU: 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 14 [Radeon RX 5500/5500M / Pro 5500M] (rev c5) OS: Ubuntu 22.04.2 LTS
I also have been affected by this bug.
Firefox browser's gpu acceratation feature is unusable on x11 session.
My GPU:
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 14 [Radeon RX 5500/5500M / Pro 5500M] (rev c5)
OS:
Ubuntu 22.04.2 LTS