Besides Wiki and AUR that all Arch derivatives share, they have their own wiki that documents the changes they're made to Arch and a very good forum for help
This really is my favorite Garuda feature - it's saved my install more than once so that I can roll back a messy update, figure out what broke and why it broke, and then make sure the next update works
Nvidia driver installation options that correctly set the mode setting, dkms drivers installed ootb, common apps like GreenWithEnvy ootb, great Nvidia support