I think here the CS degree/experience just gives you training basically to pass this technical interviews which has been a constant problem because 99% of the work you actually do, you ain't gonna need it. (I don't work at big tech companies but pretty sure it's the same, have to be very Senior and leading a project before you really need to think about this stuff?)

I don't have a CS degree unfortunately, completely self taught, but that experience while "impressive" to interviewers doesn't seem to matter much when do how do you implement a red black tree or quick-sort.

I may know the difference in general but I don't fucking care to remember the details as YAGNI... If rather remember the things I need every day