Real Madrid played PSG, Chelsea and Manchester City to the finals I think Liverpool won't have survived if they had faced those teams.
Irrespective of the age and experience of the Madrid team, I think the club itself being a big club has a role in playing how formidable the team have been. Liverpool team is quite younger, majority of them have been playing together for a while too. The difference between them and Real Madrid will be strong character and mentality.
That's right, Real Madrid have beaten strong teams to be in the final, PSG, Chelsea and also Man City. in terms of quality maybe Real Madrid lost to them it was evident in the game in possession but the mentality of Real Madrid was able to make them turn things around, therefore I think Real Madrid deserve to be champions of the UCL this season, after what they went through. it's very worth it.
The winning mentality is the only reason Real Madrid was able to advance to the final, when viewed from the quality side of the team, Manchester City and PSG are superior to Real Madrid. The consistency of the player's appearance is also an added value for Real Madrid, they are able to make comebacks in important matches. Previously Liverpool and Real Madrid had met in the same final, at that time Real Madrid won the trophy. Liverpool had another chance to avenge their defeat at that time, but Real Madrid would not be easy to beat.