is there another twitter app out there that still works apart from the official app ?
Not using Twitter is a great way to avoid the official app.
I think exploding heads folk went to Nostr, so it’s probably got more alt-right folk than is healthy. Though Twitter is a toxic cesspool that morphed into a right wing toxic cesspool.
If I wanted a social media based on people rather than idea, I’d probably go for Mastodon.
Mastodon is turning into what Twitter was and right now is likely the one out of the three to turn into the biggest echo chamber. Twitter under Elon if he keeps his promise will have free speech and no blocking. Nostr is censorship resistant. Mastodon instance admins can defederate other instsnce they do not like and turn mastodon into a echo chamber.
I think Nostr wins since as far as I know they got a blocking feature and users can choose the wild west free speech flow of information or go into a corner of Nostr and follow your interests.