I just installed the Feb 1st Ubuntu 23.04 Pending ISO with no problems.
However.
I had a rectangular ubiquity box that was flashing and burred appearance for the complete install.
This is a Intel system that has had many versions of Ubuntu installed in the past so I don't expect video problems.
The desktop outside of the Ubiquity box is stable and clear.
The resulting install is performing well. I installed all of my programs using the Snap Store for both Snap and Deb both. It was a clean, fast, smooth experience.
I reused my /Home partition and reformatted /root. I also have a 4 Gig Swap partition.
Just letting you know that the Ubiquity installer is working ok as long as you can deal with the messed up box.