After reading this, I’m glad I am not in a rush. Still on 22.04.
For the future, you should all make a backup of your drive when these huge upgrades are available (that can literally prevent you from reaching your desktop on boot). I even say the same thing to Windows users; as much as some Windows users love to gloat about Windows being perfect with no issues (despite being proven that Microsoft is also prone to release botched system upgrades).
Always assume huge upgrades like these will cause problems. I use RescueZilla (CloneZilla with a GUI) to make an entire backup of the drive.
And then, to test if it works, restore that backup to a virtual machine to test if the update will fail, causing the system to break. Or even use an older iso image to load KDE Neon with the previous Ubuntu base. Then try upgrading it.
I do this as a fail safe (and so that I never have any system down time). I’ve learned my lesson when I upgraded from 16.04 to 18.04 at the time.
BTW, I’ve been sitting with the same installation of KDE Neon since 18.04 
PS: I keep my OS drive small. So, it’s much easier to backup and restore. Another thing; never keep your important files on the same partition as the OS.