I recently upgraded from an iPhone X to an iPhone 14 Pro on Verizon and did not see any improvement going from LTE to 5G. If anything, the connection became less stable and I decided to disable 5G and it works a lot better!
Not only that, Fortnite has full cross platform support for PC, PS4/PS5, Xbox One/Series S/X, some Android phones/tablets, Nintendo Switch, and of course iOS and iPadOS when Apple and Epic weren't fighting. Fortnite definitley has a stigma around it for the younger demographic and toxicity, but from an engineering perspective it's pretty amazing.