The recommended upgrade method for Fedora Workstation installations is the graphical tool named
gnome-software. For example, in Fedora 32 and 33 installations, it currently shows a banner for Fedora 34, all you have to do is click “Download”, wait a bit and then click “Install”…
… if it worked, because this “Install” button is usually dead, nothing happens when you click it, so the user is unable to keep Fedora up to date. Are there MATE or KDE users who have found a workaround or who’re able to keep their installation up to date with this tool?
There’s an old bug report, but it doesn’t seem like adding user feedback or error handling is a priority for Fedora: 1535744 – gnome-software does nothing when clicking "install" (UnknownMethod: Method "Reboot")
Actually, in some cases a manual reboot does initiate the upgrade process but who would reboot the system after clicking an “Install” button that doesn’t do anything.