Yeah, I'm not aware of anyone offhand who's making big money off shorts. A couple creators I follow have discussed attempting to use them to bring new viewers into their channels, but apparently the conversion rate from shorts viewers to subscribers-who-watch-full-length-videos is bad.
It's still better than $0, but then it costs money/time to make and upload good quality shorts that you could spend on full length videos instead.
Because shorts are well, short, they can't run ads on them the same way they do for full length videos, which apparently hurts the revenue potential.
That's kind of insane. The top few hundred most viral shorts get something, everyone else gets nothing. I heard a Hololive creator the other day talking about how pleased they were to get 1M views on something - but that was also in the context of hoping to drive traffic to their main channel, subscriptions etc.
On the other hand, what's the revenue of a short? They've got to be pretty worthless views. And of course AI just makes them more worthless.
1: https://www.google.com/search?q=150000000+seconds+to+years