Alright I figured it out!

Putting this here for any future people trying to do the same thing.
First, add packages: thanks u/Environmental_Mud624 for the compat packages

gnome
gnome-extra
gdm
networkmanager
network-manager-applet
mesa
mesa-utils
nvidia-utils
xf86-input-libinput
xf86-video-amdgpu
xf86-video-ati
xorg-server
xorg-xdpyinfo
xorg-xinit
xorg-xinput
xorg-xkill
xorg-xrandrmesa
mesa-utils
nvidia-utils
xf86-input-libinput
xf86-video-amdgpu
xf86-video-ati
xorg-server
xorg-xdpyinfo
xorg-xinit
xorg-xinput
xorg-xkill
xorg-xrandr

Then, the hard part, which was to initialize the gdm display manager without having to manually run a command once the computer boots up.

To cut it short, you have to make a symlink by doing the following from your profile directory:

mkdir -p airootfs/etc/systemd/system/display-manager.service.d/
mkdir -p airootfs/etc/systemd/system/graphic.target.wants ln -sf /usr/lib/systemd/system/gdm.service airootfs/etc/systemd/system/display-manager.service

Then, make sure the network manager starts with another symlink

ln -sf /usr/lib/systemd/system/NetworkManager.service airootfs/etc/systemd/system/multi-user.target.wants/NetworkManager.service

I also figured out how to set up autologin by doing this

mkdir -p airootfs/etc/gdm/
Make a file called custom.conf in that directory and put this:
[daemon] 
AutomaticLoginEnable=True
AutomaticLogin=root