Finspy in Controller Editor?

No idea, probably a false positive because of how the program works.

That's why it's always good if you can to never jump intro bed with a new hardware release until version 2. The M1 requires every developer in the world to overhaul their software for another processor. Some are simple, others based on pretty old code are not and of course priorities as to what most users need are considered etc blah...

Point is, if you adopt the "M1" then expect to be inconvenienced for the first few years, M2/3 is probably the safer bet in the long run tbh.