Isn't the actual listed location of residence more a formality for a billionaire like Musk? I presume he'll still rent residences in LA and the Bay Area considering he'll be back and forth for business related to Tesla and SpaceX. This seems like he's renting a place in Texas and making a big deal out of 'moving there' to make a point about California's regulatory environment.
Finance YouTuber Graham Stephen recently made a big deal out of moving from Los Angeles to Vegas because the tax savings more-or-less paid for a giant mansion in Vegas. (And because of some slightly cringey comments about not wanting to see so many homeless people, but that's not the editorial comment I'm trying to make right now.) But, he's keeping his house in CA (for "weekends and vacations"), and he's building hi…
I'm not sure about that. I think in these high profile cases tax authorities are more inclined to look into it given how much money there is in the balance. And it's somewhat easier to track people like EM precisely because of their lifestyles: flights would be paid by his companies which would keep receipts for a few years, they would interact with other people from the company in certain location and have a shared calendar, including meeting locations.