I'm sure this is fixed match.
We know the strength between them, knowing how PSG beat strong opponents like Bayern Munich and Real Madrid, while Chelsea doesn't, PSG should have no trouble to beat Chelsea. We see the domination from PSG in ball possession, but they intentionally make error when they're near Chelsea's box.
I mean, this is just Club World Cup, not a prestige competition, hence they don't really care to become a champion.
FIFA was the entity behind this fixed match.
Stop dreaming and face the reality. Just because your prediction was wrong, and you called any game is just a fixed game. Come on! how many times the referee didn't give cards to the PSG players?
The investors of this tournament is also PIF. Enough to explain why ref was not fair.

The history clearly said how Chelsea beat Barcelona prime, Bayern's prime, City's prime, and now PSG prime. They're giant slayer.