At least Florida’s SB 868/HB 743, “Social Media Use By Minors” bill isn’t beating around the bush when it states that it would require “social media platforms to provide a mechanism to decrypt end-to-end encryption when law enforcement obtains a subpoena.” Usually these sorts of sweeping mandates...
And even then only to the extent those with the power to do so choose to enforce it. It might matter if you or I break the law; it will not matter in any meaningful way if Meta does.