I've been almost exclusively on Lemmy, but even after several months still miss user content on some of the more niche communities like my local sports team subreddit. I'll still hold out for a bit longer, if only to see what else is out there, but the itch is real.
I think it's worth keeping in mind that for some of this you'll need to use more than one platform for a while. Sports content was one of the last things that really popularised on reddit and that's because it's less popular among early adopters, who tend to be more into tech than physical activities.