The x86_64 system upgrade went fine
(https://docs.fedoraproject.org/en-US/quick-docs/dnf-system-upgrade/).
Fedora 33 is running fine on my x86_64 test hardware.
Since this is the ARM list, I'll also report that I have Fedora 33 running just fine on a couple of aarch64 boxes under my desk at the moment as well. Thanks to everyone who helped to make F33 the best release yet for ARM hardware!
-Jared