I’ll add to this.
2016 MBP w/ TB froze after clicking “Continue” on Screen Time set up screen, but after a few minutes went onward to “Serting up your Mac” screen, where it sat for 15-20minutes.
Did a force restart and everything seems fine, although my status bar wasn’t showing initially but showed after a 3 finger swipe up.
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Also, did anyone else get a “Relocated Items” folder added to their desktop? It contains read me explaining what it is, and mine has a “Configuration” folder and a “Securty” folder. They look like they are system folders but theres no files in them. What do I do with these? Can I delete them?