David said in What exactly does Bobby Fischer mean by 'talent' re 'I'm better than Morphy' in 2005 (probably re chess960)?
The differences between classical chess and 960 go far beyond just opening theory. Many strategic themes and even pawn structures that appear on 960 are hardly ever found in classical chess.
Is that true? I guess that would explain what Larry Kaufman said about Magnus Carlsen and Wesley So.
Magnus doesn't generally play such great openings, he strives to get the game out of book as early as possible usually. I think the issue here is that his greatest strength is the endgame, but FRC games are much more likely to be decided in the middlegame as the players are on their own so early. That's probably why he doesn't shine as brightly in FRC as in Classical chess.
But Levy Rozman (Gothamchess) said
Or maybe that's just heuristic on Levy's part?