I think I’ve had the opposite issue. I have not been able to use the last several WIP releases because my MacBook Pro with Big Sur 11.6.5 has crashed when I choose new model from the splash screen. This morning I found a “solution” of setting the pref value “defaults write com.mcneel.rhinoceros.8 User.Options.Advanced.TestMetal -boolean false”, but that didn’t fix things for me. So I tried setting the value to true to enable Metal, and it now runs fine. My RhinoWIP crash logs showed “Crashed Thread: 6 OGL Profiler”, so clearly my machine is not happy with something involving OpenGL in the latest WIP releases but it’s fine with Metal.