Thanks Jon!
I agree that it takes too much effort to re-write low-level drivers just for one platform.
Back to the issue, macOS 11 actually doesn’t drop OpenGL at all, just not supporting the latest version. In my case, I can still see the library in the location (/System/Library/Frameworks/OpenGL.framework) that PsychoPy claims “can’t find”. I haven’t done comparison between macOS 11 and macOS 10.15 in terms of the difference in OpenGL library. But the existence of OpenGL library suggests that there might be some easy to fix issue in the current code.
People will move on to macOS 11 sooner or later, especially for those buying a Mac after this fall. macOS 11 would be their only option by then.
Thanks so much for your time!
Gabriel