You’re on the right path. You need to swap out fedora-32 for fedora-33 on all qubes. If the option is greyed out it’s because you need to shut down that qube first (via the little “Q” on the top-right widgets corner).
The instructions on the announcement of the end of life for fedora 32 should explain all that.
Here’s the more efficient way to do it.
- install fedora 33
dom0 (XFCE terminal):sudo dnf remove qubes-template-fedora-33
- shut down all qubes (or just the ones based on fedora-32), including sys-firewall and then sys-net.
- switch out all the the ones that are using fedora 32 for fedora 33.
-
remove it:
dom0 (XFCE terminal):sudo dnf remove qubes-template-fedora-32