First confirm you have the lastest versions of:
In the EFI volume, \EFI\CLOVER\kexts\10.15\
I ever restart the machine for check its all fine before run the update and have the system clean.
Then run the Update from the System Preferences -> Software Update.
Boot on every restarts (in my case 3) from the "Boot MacOS Intall from (YourDiskName)- Data" partition until this partition desapears