When booting the live image and running the installer, if I add the GB keyboard, move it to the top, and delete the US keyboard, it breaks the installer.
This is with the Cinnamon Desktop spin.
Please report in the fedora bugtracker Bugzilla - Fedora Project Wiki
Why, f44 release media bugs aren’t going to be addressed, try reproducing with f45 media.
f44 respins are available.
On the assumption that if the bug still exists in the code that f45 will also have the issue.
Don’t assume anything.
https://leigh123linux.fedorapeople.org/pub/screenshots/anac.webm
Then now is the right time to actually download the latest 45 test iso and check if the problem still exists. If it does, you can report so it can be addressed before the beta version is created.