There is a pattern that whoever makes it to an International LAN finals twice, they will/would've won either 1 of the 2 finals. EG and PRX are in contention to each make it to their 2nd Grand Final on Int. LAN.
List of teams that have made it to 2 or more International LAN finals:
Fnatic: lost Iceland, won Lock//in and Tokyo
Gambit: won Berlin, lost Champs 2021
NV/OpTic: lost Berlin, won 2022 Iceland, lost Champs 2022
LOUD: lost 2022 Iceland, won Champs 2022, lost Lock//In
Since EG and PRX have both either already made it to International LAN finals before, whoever between the both of them wins their matchup, will win Champs. The only confusion arises if one of them wins the lower bracket final and then we get EG vs PRX for the Grand Final.