The official mobile app is not the best. I’m using Metatext instead, but there are many to choose from.

In terms of the UX I find it quite similar — you just have more control over what you see in your feed, as you can switch from “home”, “local” and “federated” timelines.

The main difference compared to Twitter, IMHO, is that there are fewer replies per thread. Which is not necessarily a bad thing.

I hope that over time the community converges to one location instead of being split between Twitter and Mastodon.