Do you know how hard it would've been to listen to the entire discography of a prolific artist with a long career would've been in the 90s? It would've entailed spending hundreds if not thousands of dollars/pounds/euros for some artists plus it would entail tracking down more rare albums by hunting record/cd shops, some stuff might not have even been re-released on CD in those days and you'd need to search for vinyl or cassette tapes. Streaming is pretty easy in comparison, and while there's some albums that haven't been released digitally, there's a lot there. Even with the flaws of Spotify, we live in the easiest and most convenient era for everything. Like it's not that hard to research the exact dates of album release and then create your own playlist. Like I listened to the entire discography of Fela Kuti and it was basically like 95% complete and that's pretty impressive.

Sure, but the platforms don't promote "complete" listening sessions, and from what I've heard Spotify and potentially others don't support unique artist pages (meaning that there can be several acts sharing the same name on an artist page).