Flat hub does not install

I tried to install flat hub because I prefer to use that instead of GNOME software but flat hub is not showing. The only time it shows is when I actually click the repo file and this is what it looks like. How do I get flat hub to show instead of gnome?

The command:

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

Doesn’t do anything

I’ve also notices that alot of apps don’t work the same. Markets that view stocks, url:

Doesn’t work well either. This is how it shows:

Alot of apps from flatpak have this issue. Remmina is another one. Hoping for a fix soon.