While I agree Apple & Google have a near perfect duopoly on the mobile space, the addition of more companies wouldn't give the FCC any less power. The "Federal" part of FCC still gives them jurisdiction over electronic communication happening in the US federation; whether they have to enforce it through 2 entities or 2000 doesn't really make a difference
Depends on the goal, PGP sure. Anyone who wanted could get it but it was still a hurdle. A hurdle that for sure would kill tiktok, or at least enough for it to be irrelevant.