For example I looked up Kenyon Martin today. I remember him being an all-star so I figured he must have had multiple 20/10 seasons. Turns out he never averaged more than 17 ppg and only got 10 rpg one season.
Muggsy Bogues surprised me positively. I thought he was just a role player like Early Boykins. Turns out he had several seasons averaging over 8 apg and a couple seasons averaging over 10 apg.
Wilt beat Prime Kareem. he was a much more skillful scorer than Shaq and a better playmaker as well, his sixers team broke the record for wins in a regular season. he was constantly facing a Celtics team that had multiple HOFs.
Gobert would be like the 5th best defender if he played in the 60s/70s. plus his deficiencies in the post would be enhanced in a league where post-play was so important.