It has nothing to do with their network infrastructure and everything to do with the way they calculate player movement, input, and perform lag compensation. H

It has nothing to do with their network infrastructure and everything to do with the way they calculate player movement, input, and perform lag compensation. Here's another surprise for you: although Fortnite and Valorant are on Unreal, they don't use the default multiplayer networking code. You can't create a reliable game with it.