If you want to be extra safe you can do this:
sudo systemctl set-default multi-user.target
- reboot, then log in
- uninstall the old one:
sudo mhwd -r pci video-hybrid-intel-nvidia-430xx-bumblebee
- install video-modesetting:
sudo mhwd -i pci video-modesetting
- install the hybrid config:
sudo mhwd -i pci video-hybrid-intel-nvidia-450xx-prime
sudo systemctl set-default graphical.target
- reboot