When it comes to instances there's no "right" answer for everyone. Pick one that you enjoy, that you identify yourself with, that you don't distrust the people in charge, and that is neither shitting its pants nor overly large. This site might help you with that.
Because not everyone is obsessed with politics and there is actually a lot of cool non-political content to enjoy. Although during some periods it's better to stay away from the main feed.
Tusky is a great droid app. And I would suggest one of the big official instances. If you hate it you can transfer your account/profile to another one. Your posts don't transfer though.
If you like Lemmy.World, why not set up the account on Mastodon.World? It's the same admin/ops team.
I second moshidon, although I've just started using phanpy, which has some cool innovations. There is not nearly the wealth of Mastodon apps that we have here on Lemmy.
Megalodon is a good client, forked from a recent version of the official Mastodon app for Android (which is a fine client in itself). Megalodon also supports some extra features that some instances opt for via a forked backend, but it's fully compatible with all instances. Here's are some good place to find instances https://mastodon.fediverse.observer/listhttps://fedidb.org/software/mastodon
noc.social is a small but quick server. Don’t use Android so I can’t speak to that.
And I will say that I’ve got much better engagement on Mastodon than I ever did Twitter. The people overall are kinder and more thoughtful. It’s more likely that the disrupters just aren’t there yet. Almost everyone I had followed on Twitter is on Mastodon though. May not be the same for everyone.
Tusky for client. Lots of good medium sized instances (avoid mastodon.social). I'm on mas.to for a general account and mastodon.scot for a local one (both reliable, run by the same person).
The benefit to finding a instance that somewhat fits your interests/ideals is that your local feed will be useful. On a huge instance it really is not.
Lemmy and Mastodon are partially interoperable. Mastodon users can post to Lemmy by tagging a community, and can reply to Lemmy posts. Mastodon users can follow Lemmy communities, but the UX is pretty rough. Lemmy users cannot follow Mastodon users.
Dunno how to answer your question BUT X-twitter was always political. It's worse now because of the upcoming elections, AND if Elon is actually going to be a part of the government it'll be a raging dumpster fire. Good luck, OP.
I'm on a local Scottish instance called glasgow.social because the admin is relaxed about free speech without allowing it to become a total cesspool. Almost got kicked off treehouse.systems before I migrated because I suggested political violence was bad - even if left wing people were doing it.
Nah that's not it. Twitter is filled with engagement bait and right wing weirdos peddling low key sexism and racism. You can't even see the people you follow anymore.
Bro every month or so I used to open X to look at what's new and I'd be bombarded with notifications from sex bots and random garbage I'm uninterested in 😭 didn't blud say he's removing the bots? That aged poorly Ig. Finally deleted my Twitter and reddit accounts yesterday