Sometimes, a like button would be useful. I like very much what Bonesy said (currently, post #365).
I too studied the games of Fischer, and studied the games of Kasparov. Fischer was one of the all time greats. Kasparov was better. Karpov may even have been better than Fischer. Karpov was certainly better for a longer period than Fischer was. But that doesn't take anything away from Fischer's greatness.
https://en.chessbase.com/post/the-greatest-che-player-of-all-time-part-iv
If you're Ace ?...then you introduced yourself to me in Las Vegas a few years ago !