The Florida law is goofy goofy goofy and was tossed out unanimously by a conservative 11th Cir. panel (Newsom, E. Carnes, Tjoflat). SCOTUS isn't going to bite on it. The one to watch here is the Texas law, which (1) at least made half an attempt to be serious and (2) was upheld by the 5th Cir.
Are you getting your cases mixed up? I think you're mistaking the new proposal out of Florida attacking press freedom (which is what the OP is referencing) with the social media laws already passed in both states.
Musings from Justice Thomas aside, I don't really think the Court wants to take this up if they don't have to. Roberts tries to fashion himself as a stalwart defender and champion of free speech rights. I think you can probably count to at least three to seriously change jurisprudence in this area (Thomas and Gorsuch have both written as such and I'm they could count on Alito as well). I don't see how you get to five though.
