Earlier quoted context omitted.
You’re making my point. The government isn’t going to protect speech more than private companies. Be careful for what you wish for on asking the government to step in.
The government has legal limits with which it cannot infringe on speech. That's not to say it always works perfectly, but at least if the government prevents my speech, I have recourse to challenge it in the court system on constitutional grounds. If Google or Apple does it, I have zero recourse, and the limits of the speech on their platforms are decided entirely unilaterally.
Government sticking their nose in there is likely to have results that are not what you want. The freedom-maximizing option is not to have government-moderated app stores (shudder). It’s to have the freedom to shop at different stores.
The App Store model itself (where sideloading is prohibited and technically impossible) is a single point of failure, and having the government run it is not going to make things more free. I mean for goodness sake, you can’t even swear on FCC’s airwaves, and you’re telling me THAT’S the model you want in App Stores?