I just followed the note that’s mentioned on the top of your link and installed the Nvidia driver as dkms package. I originally did that because of trouble with a new driver version and temporary downgrading is much smoother with dkms.

Also never had issues with the DE starting properly after upgrade since then.

No idea what you mean. I just quickly wanted to update before calling it a night, got a grub update and now it neither boots the default nor the fallback image. I use Arch BTW.