Okay, after removing all the preinstalled media players plus firefox and reinstalling them through Flathub it might be possible to skip the official tutorial.
Fedora should just preinstall everything as flathub flatpaks.
the problem will only be delayed on Mint because Mint’s underlying Ubuntu core is just older. Once a newer security policy comes to Mint, it will have exactly the same problem.
That is a valid point. Although I can imagine that Mint devs would rather leave legacy TLS enabled to be more user-friendly.