My findings:
1.
On Intel MBP - confirmed Apple did break it. I was unable to get Launcher rendered correctly:
However it is possible to start main windows with all elements correctly rendered and working.
Press START button in Laucher first - it will render incorrectly:
Press STOP button in Laucher and after main window completely closed - press START in Laucher again, now it is loaded OK:
2. On M1 MBP it seems to be loading OK - I have tested it on VM under UTM. Loads right from start with no issues:
Recommendation so far are very obvious: never load first issue of new macOS with x.0.0. Wait till new build stabilises (aka Apple found and fix all their shit). Good practice is always keep it n-1 for working machines. Even tested on M1 VM - I still would not trust it myself and will not recommend anyone to upgrade, at least before 14.0.1.
Downgrade to 13.6 and keep it running untill further advise from EE.