The stats might subsequently prove me wrong, but it feels as though the removal of the "away goal" rule has had a bigger impact than the new format, resulting in more games going to a penalty shootout
It wouldn't have made any difference to PSG-Liverpool, but City have previously suffered from both systems.
Tottenham 2018-19 would have gone to penalties, but last season we would have beaten Real Madrid having scored more goals in the away leg.
I'm not suggesting that either system is better but it just feels as though more CL games will finish with penalties