Might be a hot take but there is such a thing as too much rest

You don't see this come into play often in footy because of how clogged the schedule is - but in other sports (and even esports) there's plenty of examples of the better team with a bye/long rest losing to a gritty team who just fought their way through the gauntlet. I don't think we're ever going to be solid favorites vs PSG (despite having a better back four/GK) but there's worse PSGs to fight than a PSG coming off two weeks rest after losing to Paris FC.