Console or Gamepass PC -> Download the mod through Creations menu inside your game client.

PC players who can't, or prefer not to, use Creations -> You may download it from Steam. It is recommended you use a Mod Manager such as MO2 or Vortex to install the mod. If you know what you're doing, feel free to do the install manually.

Further install instructions and help will not be provided. I simply do not have the time, sorry.