Comment by ece

There were uses for DGPUs in MacOS before AS, those uses could have continued, but Apple left no choice. It's weird how continuity wasn't as important to Apple in this case.

Whatever kernel or hardware facilities are available to Apple's own GPU driver, should be available to other GPU drivers. Anything else is myopic thinking, which I realize might be common for Apple, but it is also monopolistic.

Linux also allows userspace drivers with less performance I think, but I don't think DGPU use can be made performant because of AS hardware choices.

I am predisposed to ignoring link requests for things that can be easily googled.