If it was the ui app you were asking for it was called Launcher iOS 15, but they made an 18 version since then. I'd get a system adblock or DNS before installing any of them, assuming they work on your phone anyway
I remember downloading some app in highschool off the playstore to make my old ass galaxy note4 UI look like an IPhone X, had identical features and everything. It looked legit to my friends who used them their whole lives. Didn't really like it but its out there.
Oh and there's free apps like Innertune which is basically YT music+
It was actually when I first started using this site. I've been jumpscared by worst shit spammed by some bot on Lemmy Shitpost than anything I've ever seen mingling around internet edgelords
