Unable To build Linux ARM using First Person Template

I dont understand why FirstPerson template isnt very useful. My target game will be a single player game that I want to run on an ARM system. I currently dont understand what a “server build” means and how that limits my game or my build. Will ARM users be able to play a stand alone game on the ARM device?

Does server build mean headless application to aid in multiplayer but does not allow local play?