Literally Dell Computers is from Austin.
Not trying to belittle Austin - I know they have a tech scene - and I know every city is trying to capitalize on marketing their city as the next silicon valley (which is such a ridiculous thing to do for an incredibly long list of reasons).
Amazon is here, and again they have a number of buildings in the Domain area. I think it might be their second or third largest site, behind HQ and possibly HQ2.
Of course Dell is here. Google doesn’t have much of a presence, yet.
There are lots of other companies that have massive presence here in Austin. Tesla is highly unlikely to be the biggest.
Amazon largeset office presence outside of seattle (and bellevue which come consider seperate) is SouthBay cali, followed then by HQ2
Look at prices in Portland, Seattle, Vancouver, or out east. They all easily top Austin.
I think it's a good thing. Austin has a budding tech scene. Hopefully the political shitstorm there blows over so people actually want to live there.