Do you have to watch a loading screen while system updates are applied like on regular Fedora or is it in the background?
Many flatpak apps are maintained by unofficial volunteers, and this isn’t always clear on Flathub; I view this as a security risk and would prefer to see a flag or warning of some kind when a flatpak is not maintained by the official upstream developer
On flathub.org there’s a blue checkmark for apps maintained by the devs