Like I get there are several reasons people remain. It just feels kinda weird to listen to a podcaster or youtuber go off on twittter, yet they still use twitter exclusively.
It's a shame but it's also true none of the options are a real alternative to Twitter. Twitter's main strength comes from the number of creators it has and the discoverability of content for general users. None have succeeded in breaking it.
Discoverability of content above average? On Twitter? An I doing something wrong? The only time I end up on Twitter is when someone links to it. Following or even searching in comments is essentially not possible.