You can remove them with
sudo apt remove --purge '^nvidia-.*'
Then try the -575 driver as described in the link:
"sudo add-apt-repository ppa:graphics-drivers/ppa"
"sudo apt update"
"sudo apt install nvidia-driver-575-open nvidia-utils-575 nvidia-settings"
Then reboot. If it not works configure Xorg (point 3 in the link).