This might be much more true of European universities than American ones

I use zero knowledge from my University. Everything I was taught, I either knew before or it was stuff that I don't use. I use 100% of my ability to learn acquired when I was there. I attended one of the best Russian Universities. So I can only confirm this phrase.

Whether that's a good way to spend 5 years - I don't know. But in practice it turned out that way.

Sounds like you got very lucky. To clarify: the (reasonably well regarded) university I attended most certainly didn’t teach me how to learn properly. It taught me how to cram to answer a contrived set of questions and then promptly forget everything. I’ve learned more about how to learn from a few short books than I did across the sum total of my university education.

It's somewhat popular opinion

I've seen countless arguments about higher edu and whenever somebody says that school didnt teach him x,y,z,

then people often try to counter it with something like

"ohh, uni's goal is to teach you how to learn and make aware of how big some domain is!

what you're talking about is trade school!" (it's terrible counter in my opinion)

This 100% was true at my (European) University. The better the University, the more true it is.