I use nostr:npub1nwkd0pe6pn7x8tassvrpcs8nleyxpnm7y8g0wqjzcgrwhaucjjvqcrdgjz (formerly Plebstr) and the experience is pretty on par with X, other than it being a bit slower and sometimes not remembering the post you were in when you switch back after a while. But def recommend you give it a try. It is very polished.