I'm really glad our server, #SocialCoop, enabled Mastodon 4.0's translation feature. I'm now following a few non-English accounts and it's super-seamless.
I actually prefer it to Twitter's, in which I can't translate from the timeline view, only from individual tweets (web UI).
If your server doesn't have it enabled yet, might be worth considering! And if it does - go follow some non-English accounts and give it a try :)