I’ve gone to the lounge loads of times with a connection shorter than that for food but the obvious answer is it depends if you arrive on time… also factor in which concourse you arrive at and which concourse you are departing from, how long the walk to security is, how long it takes to get through security… are you going to a J lounge or are you going to an F lounge and ordering a La carte and finally how comfortable are you remaining in the lounge when the board says “final call” which on many occasions boarding hasn’t even started yet..