An anecdote: I got an offer to leave my mid-level FAANG job to return to the Midwest for a VP role at a 200+ person company. The compensation was about 35% of my total comp, and it was maybe one of 3 companies in the area I would consider working for. Not to mention going back to cold winters, McMansions, and chain restaurants.
I don't think people fully appreciate the value of unenforceable non-competes + many companies congregated in one area. No where else in the world does the labor have this level of negotiating power and flexibility. Even if it can be replicated (and I hope it is!), it won't be overnight.