So I'm on Threads (occupational hazard, I have Instagram for work) and it's a surreal experience. It's like if everyone you know on Facebook and Twitter joined you on a muted Tumblr overlay. Someone's already @'d Zuck to ask for a "home feed that's just your follows." So... like Mastodon.
Use Threads to preach the benefits of Mastadon, Lemmy, and the Fediverse in general. Spread the good word that if you don't want to be bombarded by ads, manipulated by unscrupulous algorithms, and have your data jealously horded to be sold to who knows then get off Threads and enter the cool kids zone!