Does Elon over-hype nearly everything he gets involved with? Clearly yes.

Does he also deliver on some mind-boggling timelines? Well Tesla went from delivering its first cars in 2008 to having the best selling car in the world in 2023, and SpaceX went from not having successfully launched a rocket to delivering about 80% of the world's space payload in roughly the same timeframe. So I'd say that's clearly a 'yes', too.