What happens to a player that is god tier in a dead session? They dont dissapear like doomed timelines do they?

A dead session is a session like Caliborn’s where only one person enters the game. Once Caliborn had finished his quest it wasn’t explained what he was supposed to do afterwards. In his masterpiece he says he’s hanging out with Lil Seb and Gamzee “as always” so it could be that players of a dead session just stay in the Medium.