Which other kernel? From the eos discover article link I posted above:
The package is available from EndeavourOS Repository to install it:
sudo pacman -S nvidia-installer-dkms
We ship the dkms version by default so the drivers can be kept up-to-date, regardless of the kernel version you’re using. Using the dkms version also means, you need to install the kernel header packages that match to your installed kernel(s).If you are using our AKM tool, the headers will be installed by default.
// example for linux-lts: sudo pacman -S linux-lts-headers
From what I can see of your hardware output, newest Nvidia driver was installed. If you want to run another kernel like lts I suggest you simply use the akm tool.
Now to switch between your Intel and Nvidia card that’s another story.
Here is the short story:
You could use Optimus manager:
https://discovery.endeavouros.com/nvidia/optimus-manager-for-nvidia/2021/03/
From your post it is unclear what problem you have with Nvidia. The other post you were referring to had screen freezes because he didn’t install correctly his RAM hardware… Are you experiencing screen freezes? If yes I suggest to save the journal log right after it happens and post the link here. You can use the eos log tool installed by default or accessible via welcome app 