You are in a thread where a user is having a problem because of the push for flatpaks, and because of some distros like Fedora crippling their packages and providing objectively worse alternatives on purpose (because they don’t want to risk RH IBM getting sued). If the user was using some sane community distro like Arch, the user would have never come to realize that such unnecessary issues even exist.
As for flatpak hate specifically, see my ramblings here.
And user-space implementations of WireGuard are used a lot anyway, especially on mobile. Every VPN provider app ships with one, at least as a backup (It’s
wireguard-go
usually sinceboringtun
is not well maintained).