It’s not currently possible to follow individual users on Lemmy. Even if the features shows up, the consensus among Lemmy instance admins right now is to not federate with Threads.

You can do so through Mastodon ex: https://mastodon.social/@zuck@threads.net

As @mp3@lemmy.ca said, there is no way to follow users. And anyway, I’ve yet to see a Lemmy instance that can actually access Threads, yours included: https://reddthat.com/u/zuck@threads.net

Nah, microblogging does not appeal to me.

You can’t. You can’t follow Mastodon users either.