This still occurs with the 6.7 kernel (including the os-build target after release) intermittently.
Ensuring the reserved VRAM is set to 4GB in the BIOS (UMA_GAME_OPTIMIZED) prevents it from occuring less frequently than the amdgpu scatter gather toggle + Ensuring you are using the most recent DCN/linux-firmware blobs from the amdgpu freedesktop git repo. Those actions combined almost completely eliminate it under lite daily usage.
However depending on what you do with your system it’s still trigerable. I generally encounter it irrespective after specifically any sort of GPU memory intensive operations and/or RAM intensive work (i.e compiling kernels etc) after a resume from suspend.