The perception of cheating levels is orders of magnitude more than the actual amount. The vast majority of games and players are clean
Game Review accuracy is not a cheat detection tool and in long or simple endgames it often very easy to get higher accuracy.
https://support.chess.com/article/648-what-do-i-need-to-know-about-fair-play-on-chess-com
https://www.chess.com/article/view/online-chess-cheating
https://www.chess.com/article/view/chesscom-update-february-2025#FairPlay
The site closed more than 100,000 accounts in January for fair play violations and has a full team of staff working on reports along with some automated systems for detection.
https://www.chess.com/article/view/fair-play
That said, discussions of cheating, potential cheating, or cheat detection are not allowed in the general forums. If you want to discuss join the following club: https://www.chess.com/club/cheating-forum
I just finished a game in which the player was average to my Elo (1200). He had 1189, and out of nowhere, he took a lot of time after his middle game—going into the end game. Where he had 43% accuracy in the middle game, did he suddenly get 93.2% accuracy in the end game? 60% increased chess abilities in endgames? This to me seems fishy and it ruins online gaming. You can't cheat OTB - makes people trying to improve might as well only play the bots.