The perception of cheating levels is orders of magnitude more than the actual amount. The vast majority of games and players are clean.
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-april-2025#FairPlay
The site closed more than 107,000 accounts in March 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 would like to discuss join the following club once you've been a member for at least 30 days
https://www.chess.com/club/cheating-forum
I was playing a game on my alt account and then I lost, but when I came back I regained my elo points. I did game review and it said that the ooponent's accuracy was 99.6. What else do I need to know if someone is cheating?