I'm a Linux noob. But I get suddenly when i try to download the updates the Fedora Software store is showing me, this fail,
package proton-vpn-gtk-app-4.7.4-1.fc41.noarch cannot be verified and repo protonvpn-fedora-stable is GPG enabled: /var/cache/PackageKit/41/metadata/protonvpn-fedora-stable-41-x86_64/packages/proton-vpn-gtk-app-4.7.4-1.fc41.noarch.rpm could not be verified. /var/cache/PackageKit/41/metadata/protonvpn-fedora-stable-41-x86_64/packages/proton-vpn-gtk-app-4.7.4-1.fc41.noarch.rpm: digest: SIGNATURE: NOT O.K.
I'm pretty sure just using the "sudo dnf update --refresh" command in terminal will fix this problem. It will ask you verify those packages new repositories. After that, you should be good using the store again for updates. This is assuming you upgraded from Fedora 40 before these errors occurred.