I had a Model X from 2016-19 and that was not my experience. Any highway speeds greatly reduce range, at least back then. Perhaps not by 40% but definitely more than 20%.
It’s good to know what products politicians are getting paid to support so I know which companies will succeed/fail and which stock to buy. It’s the only way to try and get some of my tax money back from all the grifters in government and their voters. What a brilliant system we have.