Tech Support told me the Nvidia Card dropping out after resume or sleep was a known issue with 20H2.
My problem was that it did the same thing with a shutdown and reboot, so it's not a sleep thing.
Nothing you can do other than reinstalling drivers, over and over and over again while your passively cooled i7-1065G7 hit's 100C under minimal loads.
Appalling in a £2000 laptop. Heaven only knows how people use these for gaming, they struggle with Office and Youtube