Fortnite first introduced customizable FOV in Chapter 5 Season 1, and it has remained one of the most essential features in Chapter 6 to get an edge over your opponents in the Battle Royale.
Thankfully, similar to many other Roblox games, you can use scripts in Fortblox to get Silent Aim, FOV Change and other such things. With these, you can improve your gameplay and also get easy wins.