

It’s not resolving the mirrors. Can you open any websites in a browser on this machine? Sure seems like the network is unstable or possibly unusable.
Otherwise, just run the check for updates, install and updates that are available and see if those work.
Also, why are you specifying the release server manually?
Is ProtonVPN active by chance?
Did you update the release targets first with
dnf upgrade --refresh
?You have two different problems btw. The first is a network connectivity issue where it can’t find the target repos for whatever reason.
Second is it looks like you have conflicting packages installed. I see mpv, rubberband, and Firefox in that screenshot, but there are more.