Game view scale won't go lower than 1.3x in 16/9 display mode

Unity Engine
2

That scale slider’s range changes dynamically with (for what I know):

  • the size of the editor window
  • the size of the game view within the editor window
  • the desktop screen resolution
  • the aspect ratio and game resolution (as you noticed)

Try changing the size of the game view first to see how that affects the available value range of the slider.