From what I have always been told, each player maintains a separate connection to Chess.com.
Chess.com receives moves from each player and retransmits them to the other player. There is no direct player to player connection.
Therefore, such a scheme would be impossible.
Feel free to join the Cheating Forum club to discuss the idea with others. You can't discuss it in the regular forum.
I found a cheat engine on the internet that allows your opponent to make the app believe you have quit the game even though you didn't quit. You will be winning and it appears to the app that you are offline or quit. I have noticed that a lot of people use it. However if you notice the timer for the game. If it is the opponent's turn first, if they are white, on the very first move immediately look at the time, the numbers on the clock should be white as it starts to time down. But I notice that on some of the games, the numbers on the timer would be gray instead of white. This is happens when they are launching cheat engine, it takes about 2 or 3 seconds. So when you see the gray numbers when they are supposed to be white. They are cheating. Every time this happened I would automatically resign or get disconnected from the internet. This does not happen when the display for the timer is white on the first move. The timer is normal then most likely they are not using this particular cheat engine. Now if you are white and it is your move, same thing happens. When the timer starts the numbers on the timer will be gray instead of white. They are launching the app. There is a way to get around it. If you are the black pieces and your opponent goes first, you notice right away, hit the reload button, and it will auto abort if he is cheating, if not it will just reload like normal. However if you are white and this happens, you try to hit the reload button, instead of reloading then the app shows that you quit and you lose so you have to use the abort button instead.