I'm glad they looked at climate because for a lot of people it's a huge factor. Some people seem to like but for me the Pacific Northwest is the most depressing place on Earth (outside summer). The Northeast? Less depressing but the winters are harsh.
I expect family is a big factor in wwhere people move, as in people are moving to have some proximity with their extended families. It's just that remote work has allowed this to happen.
But here's another potential factor: the Trump tax "cuts" did three big things to individuals, which is particularly relevant in tech:
1. Raised taxes in the $200k to $500k tax bracket;
2. Ended the longstanding SALT deducation (mostly); and
3. Any personal income tax cuts (unlike the corporate tax cuts) are temporary and are slowly being rolled back.
So consider a software engineer with TC of $500k in CA or NY. You're paying close to 10% of your income in state income taxes and might be paying $30k in property taxes. In addition to losing $80k in taxes, you no longer get a Federal deduction of 33% for those taxes so you can be losing more than 20% of your income to state and local taxes.
Now that same engineer moves to, say, Nevada. State income tax is gone and property taxes are low (because of casinos) so your net pay could be almost $100k higher.
Put another way: that means working in CA for 5 years will net you the same money as working in NV for 4.
The Northeast has already had a longstanding trend of migration to the Sun Belt, so much so that NY lost a congressional seat in apportionment from the 2020 census while Florida gained 1 and Texas gained 2. For non-US people, every 10 years there's a census and based on the results the 435 Congressional seats are distributed. If a state gains or loses enough population they can gain or lose (respectively) Congessional seats. It's actually a big deal.
I'm happy people have the option of living outside a few big urban centers. Some locals are mad at skyrocketing real estate prices. The biggest reason for this is and overall demand shock but migration doesn't help. Still, it's more high-paying jobs in those economies.