A lot of this website is just notes for me about doing Linux stuff on my computer. Here’s another one for the pile:
https://docs.fedoraproject.org/en-US/quick-docs/upgrading-fedora-offline/
If you have trouble updating or upgrading your Fedora box, here’s the instruction page with a walk-through on doing it via command-line.
I always have a lot of trouble upgrading my system because I’ve installed a bunch of random stuff … so I usually have to do it manually.