Why don’t you use Optimus and switch to Nvidia instead of the command above to hybrid?
optimus-manager --switch nvidia
Also note that if you simply install Nvidia driver, your laptop will still run Intel if you don’t use Optimus manager. But you can connect an external monitor and it should switch on Nvidia for that monitor. You can check by opening nvidia-settings. Assuming you installed correctly your Nvidia driver.
inxi -Ga
Which driver is installed now?