Use the "report" function :/
what can i do if an account is cheating!?
Abs mentioned, if you feel another member is using disallowed resources you should report them.
https://support.chess.com/en/articles/8562517-how-do-i-report-someone
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-may-2024?#FairPlay
The site closed 56,000+ accounts in April 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. https://www.chess.com/club/cheating-forum
[public accusations are not allowed -- MS]difference between daily and live chess level, Nd5 was sick, 2400 or engine, not a 1000+
is it legal to play engine moves in daily chess?
call an admin pls, many games to "review". and accuracy always above 90%