They are champions in their domestic league with no rival or any club as strong as they are. That has always been their problem, because they think that they are a good match for clubs that are champions in their various leagues. PSG quality shouldn't be compared with Liverpool, because PSG is not used to playing with strong clubs but only in UCL. Liverpool will humiliate them.
I think the situation is a little different for PSG this season, meaning they can be said to have made a lot of improvements to the team and I will not measure their strength in the domestic league and the Champions League because in the Champions League the competition is much stronger. However, with the improvements that have been made by Luis Enrique where he has brought in many great players, of course it will strengthen the perception that PSG cannot be considered weak this season.
Indeed, if we look at Liverpool's performance, of course they can concentrate well in every match they play. Moreover, with the current strength, of course gamblers prefer Liverpool to be the winner in this match. In addition, under the strategy run by Arne Alot, of course it is very good because Liverpool players are able to adapt and they have improved a lot in their playing style.