Do you think that Google's role in maintaining Andriod, associated tools and hardware could become problematic?
Discussion
Yes, but we have other options.
no. AOSP is more than just google. it's many other hardware vendors and players.
Sure, however unfortunately it seems to be mostly Google and the most popular hardware for GrapheneOS and CalyxOS is the Google Pixel.
Difficult to know what hardware is actually in the device running its own firmware. Was always suspicious of Google as "an advertising company producing a phone" sounded dodgy! No trust at all now!