Zend certified PHP/Magento developer

How to properly setup intel and nvidia GPUs on Ubuntu?

So, it seems bumblebee is dead and abandoned. The last serious activity on the repo is from 2013. Apparently, the current “good” solution is the one described here: every time I want to use Nvidia GPU, I have to at least logout and log back in (apparently the Nvidia tool to choose between Intel and Nvidia changes the initramfs, so I thought I had to reboot) and now my laptop uses twice the power (I can feel the much increased heat from the vent), I have to reconfigure my monitor setup, and I can no longer use the Intel GPU (I can see it listed in Vulkan devices, but trying to use it gives me an error). Is that the “state of art” of Nvidia on Linux laptop?

Can’t I have both GPUs available, Intel working most of the time, and decide to use Nvidia on a per application basis (or maybe both simultaneously, as I have done with AMD+Intel via Vulkan)? My device is a ThinkPad T480.