If updating the OS, messes with the Nvidia driver, then the first thing I would do, is re-install my Nvidia drivers.
CTRL - ALT - F2 to enter terminal.
sudo apt-get update sudo apt-get upgrade
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-driver-470
NOTE, if your notebook is older, basically a machine that is 5-years old, install the Nvidia 430 driver instead. If your computer is much much older, like 10-years old, use the Nvidia 390 driver.
Additionally, if your computer is indeed much newer, like say a computer from 2020, but the 470 driver doesn't work, install the 460 driver instead.

. The only thing why i still have windows in dual boot is because i need to sort out how i get some games to work under linux.