I’d place the blame more on businesses and dumb managers keeping them afloat since they still think Intel is the best bet for their computers or they’re stuck with Intel due to existing contracts. After AMD came in and bitch slapped Intel with Zen, a lot of the community switched teams and went over to AMD for CPUs but most businesses haven’t yet.
Not to my knowledge. You can go back from act 2 to the act 1 areas but you can’t go from act 3 back to the act 1 and 2 area