HP Enterprise and Oracle did not move because Texas is "more tech friendly." Instead they moved because HPE and Oracle are no longer primarily tech companies. While they do substantial technical work, most of that will remain in SV.
It's sort of the mirror of Apple, which also has a substantial presence in Austin (finance, etc) but is headquartered in SV because it is primarily a tech company.
Then COVID hit and we had no other option. Everyone went WFH and tech CEO's realized a few weeks/months in that no, their org isn't imploding, it's actually doing pretty damn well.
Now all these tech CEO's are starting to look around and wonder, if my companies productivity didn't drop off a cliff, why should I be paying for this super expensive office space?
Tech CEO's were told this lie that WFH will lead to a catastrophe in their company, all these office closures and moves seem to be a reflection of leadership calling the bluff on this.
I continue to believe when this is over, not much changes in terms of remote work v. in person. Supplemental/support orgs might go WFH but the innovation engines will be in person and close to the c-suite.
I've seen seniors go completely async (timezones barely compatibles) and periodically you'd see an email from them detailing what they are working on, what they are blocked on and outlining the next steps.
You knew they were doing something simply by looking at the pull requests they sent and the comments they left on the PRs they were reviewing. But try that with a new hire and I guarantee it won't go well.