I've been on Mastodon for several years, most of it on a singular instance (well before the Twitter migration). You definitely have to go looking for your own list of interesting people to follow, and the hashtags are quieter than I'd like, but I enjoy it as a chill place to just hang out and read fun stuff and occasionally have low stakes conversations.
I've tried a few other fediverse services but none have really stuck with me except for probably now Lemmy and Kbin.