Are there bots in Ranked games?
If you suspect another member of using disallowed resources, you should report them directly to staff.
https://support.chess.com/en/articles/8562517-how-do-i-report-someone
Regarding the number of games, some people have a lot of time to play and if they play quickly, they can easily accumulate a lot games, especially when playing bullet or blitz.
That said, discussions of cheating, potential cheating, or cheat detection are not allowed in the general forums (use of bots to play would be considered cheating)
If you would like to discuss join the following club.
https://www.chess.com/club/cheating-forum