This app could potentially supplant Tik Tok overtime. As Tik Tok's censorship following it's acquisition by US investors such as Oracle, Silver Lake, and Abu Dhabi-based MGX, and UpScrolled already having questionable ethics, this may be the path forward.
Tbf Lemmy is still lacking on many things like media(comics, games, tv shows, cartoons, anime/Manga etc), Reddit right now is THE place aside from niche sites specific to each median, but as for Discord I agree, alternatives are not so hard there... Lemmy is getting there though.