In any case: We are talking about this buzzwords for ~8 years now. Is there a list of useful web3 offerings by now? Any heavy hitters, killer applications? Anything besides wacky money making schemes like virtual sneakers?
This is not true. The blockchain was/is a genuine technicalogical advance. It makes things possible that weren't before. From Wikipedia:
"The implementation of the blockchain within bitcoin made it the first digital currency to solve the double-spending problem without the need of a trusted authority or central server."
Now it's certainly true that, just like MongoDB before it, overzealous people are trying to capitalize on the fad and insert "blockchain" into places where it doesn't make any sense. But there's a very important distinction between that and your statement.
Like, for example, partnerships to exchange customer loyalty points. But even that has perils, as you could set an exchange rate but somebody has to administer/manage that. And once you're back to a managed ledger, you might as well use contractual terms for trust and a database since a blockchain isn't adding much value.