you can use the report feature for stalling/abandoning
How do I report someone? - Chess.com Member Support and FAQs
you can use the report feature for stalling/abandoning
How do I report someone? - Chess.com Member Support and FAQs
Members that do that a lot will get flagged by the Sportsmanship Policy
https://support.chess.com/article/627-sportsmanship-policy
There should be a clear stipulation as to how much max time is allowed for making a move after which the game should be considered to have been surrendered.