Liverpool may have an advantage. It's called neuro11
A small team that takes care of the mental strength of athletes. For free kicks, corner kicks and penalty shoot-outs, they help every player to have control over his emotions. They work with Klopp and the first successes are two finals and 17 of 18 successful penalties. In the League Cup final against Chelsea 11:10 everyone scored and in the FA Cup 6:5, here only one missed. It looks like it's working.
Today's match will likely not lead to a penalty. I always do not like the hype like Liverpool can easily win a club. EFL and FA cup led to penalty with Chelsea, not a straight win. Chelsea I not the same as Real Madrid and I am not expecting this match to lead tk penalty today but either Real Madrid or Liverpool woudl win. I do not see any advantage Liverpool is having over Real Madrid that defeated PSG, Chelsea and Man City which are part of the stongest club in Champions League this season.
And vice versa, Liverpool have also gone through a difficult match to reach the Champions League final. Liverpool managed to bring back inter, milan, and atletico madrid, yes we know those three teams are the rulers in their respective leagues. Real Madrid will be the 2nd team from La Liga to return because of Liverpool

Let's hope it happens, a few hours before the game starts, the odds don't change much
Only Juventus I have known in the last 10 years that played good most in Champions League, Inter tried in Seria A but not in Champions League this season. Atletico Madrid was not at his peak when defeated by Liverpool. I still think that Real Madrid defeated stonger teams this season if compared to Liverpool.