hnrtk Hi there
I have been using the following solution for about 6 months.
Works flawlessly.
if i need nvidia power, for example to play, or otherwise, i switch to nvidia.
and then back to intel for normal, simple use.
the first link leads you to the simple variant. you have to install them by hand. that is easier than you think. however, you always have to use the terminal to switch.
the second link leads you to an 'improved' variant, which also includes a graphical user interface. and, this variant offers an installation script.
i discovered the second variant later and installed the gui afterwards.
runs or works perfectly.
link 1: https://github.com/xulongwu4/nvidia-optimus-manager
link 2: https://github.com/Ronan-Kelley/nvidia-optimus-manager-gui