In reality you get lectures from individuals that became professors because they are great at politics/research but not at teaching (very different skill).
If you even get them and not their 25 year old assistants.
And this is apparently super common even in ivy league universities as Youtube lessons have shown me over and over.
Be thankful when you get the 25 year old PhD students & post-docs. They care more about teaching and remember learning the material recently and are more willing to talk & help you.
Plenty of courses taught by brilliant individuals that were just bad at teaching or borderline not prepared.
Some courses (like biochemistry) were effectively useless as de facto you had to memorize 600 pages of Lehninger's book anyway. There's nothing to understand in the Krebs cycle.
I also vividly remember exams like advanced algebra were the professor genuinely did nothing but rewrite canned content on a board and could not really shed light on anything, you were on your own.
I think you have the “even” backwards. Elite research first universities have this problem more than teaching-first, low research output programs.