After some booting issues of the installer under clover 5110 (I would get an apple and then a shutdown [in verbose i saw an indication it had something to do with airport]), an accidental update to 5123 instead of 5122, and and calamity trying to boot from my original install usb (remade with wife's apple laptop and created with current 10.15.7 update files and clover version 5119) I used the usb install usb to replace the failing boot drive EFI and updated it with my previous config, extensions and USB mapping files. Then the update was as smooth as butter... it was a bad Saturday.... the good news is out of all this, my Apple Watch opens my computer again and Sidecar / Handoff all work flawlessly now.
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