I’ve no doubt the French police likely escalated scenarios, it’s no secret a lot of police in various countries are more than happy going in heavy handed on football fans for little or no reason (though our own aren’t always angels either) but so far I’ve also seen:
Videos of Pool fans jumping barricades.
UEFA statement and a French minister saying that thousands of Pool fans had counterfeit tickets which is what caused the backlogs their end - and there are even tweets being brought up of some of them boasting that they had a counterfeit as if it were gonna work

.
A Liverpool fan on Twitter - who’s since deactivated his account - celebrating that he managed to bunk his Dad into the ground.
A video after the game of two Pool fans sucker punching a Madrid fan celebrating their win.
So yeah, forgive me if my sympathy levels for them aren’t too high.