Hello @eyJhb, there's no value in intentionally misreporting an issue to a different project. Closing as not a SteamVR regression.
Hard to find information on, and affects Half-Life Alyx a lot. Surely other people are having the same issue as well, so having awareness is nice.
EDIT: also an issue because HLA over allocates VRAM, which it shouldn't.
Nothing extracted yet.
I'm adding this as a placeholder for others who may notice the same, and the bug here is ONLY for discoverability.
On Linux Kernel 6.10+ there was a commit, which changed how VRAM is allocated etc. which can cause huge performance issues an AMD GPUs.
For further information, see the bug report here https://gitlab.freedesktop.org/drm/amd/-/issues/3844
I have a comment here, with my specs etc. https://gitlab.freedesktop.org/drm/amd/-/issues/3844#note_2815924
Hopefully it's OK to have here, so that others don't go down the rabbit hole of bisecting the LInux Kernel like I did.