Yep, I uninstalled fortnite 3 times already, the first time it was just the fortnite app, the second and third was both the launcher and the app itself.
Are you having an install issue or you cant get past this screen here: https://www.reddit.com/r/FortNiteMobile/comments/d7tho8/what_does_this_mean_you_do_not_have_permission_to/