Fortnite should consider adding an option to upload and save custom presets for settings such as key binds, mouse sensitivity, and controller settings. Here's my suggestion for the implementation of this feature. :
Fortnite | Recommended PC Keybinds for Beginners and Pros - GameWith
Controls - Fortnite Wiki
Best Fortnite Keybinds for PC - 2023 - Online Game Commands
Fortnite Battle Royale: Keyboard Controls - Orcz.com, The Video Games Wiki