Garuda-Hyprland - Change from NVidia to AMD

Nvidia drivers are installed via mhwd at installation time via Calamares HW detection phase, or manually later, of course.

This is not clear to me.
The contents of the current settings are in Gitlab:

The package is updated normally via garuda-update but, just like any other Garuda settings package, the updates are only made to e.g. /etc/skel, they are not automatically updated into your ~/.config/ folder.
No one will ever touch the configs you performed (or just generated at user creation), but the downside is that the new configs must be applied manually.
Apart from that, you will not need anymore the packages and environment variables described here in the Nvidia GPU part: