If one would come and tell that US has probably somewhere between x and y % of the total hash rate, I'd say: "OK, finally a honest chart".

When it comes with numbers like 5.3% (allegedly US in 2019) or 19% (Kazakhstan) and so on, then there's no different news than the previous one, where US was already looking good and which was also filled with inaccurate numbers.

So yes, I can believe that US mining may be somewhere in 25-45% range (I've taken some margin for error in both directions). It looks like US indeed took the lion's part when China sent out its miners, although I would not be surprised that - exactly like with Germany - some numbers are there only because VPN.

I don't know if those big companies indeed have their hash rate entirely (or mostly) in US. I'd expect surprises from there too.