Just a question. There has been a discussion in our organization that we cannot build our iOS app in a Mac with M1 Pro chip :/ I don't believe it honestly and I think it's possible. But is it possible? We've also been encountering different errors in MacOS like some imports are not available in M1 Pro but are available in Intel chip. I tried to search for related topics but can't find much information if the user in the tutorials are using Intel chip or M1 Pro chip.
Appium supports M1 chips since version 1.20.0 which was released almost 2 years ago and I doubt it matters if it is a Pro chip or not. To be sure you should use Appium 2.x with the latest xcuitest driver installed (Appium 1.x is not actively maintained anymore). If you cannot build your own app on M1 Pro chip - that issue is not related to Appium.