I know I have isues but so does update.
us this a bug or a feature?
Try the update from the command line with sudo dnf update --refresh as it will give you actionable error messages.
What output do you get?
This is a flatpak.
Run
flatpak update
(dnf won’t do anything)
Also flatpak update. The “Error 1 of 2” in the picture looks like an issue trying to install a Flatpak runtime.