Hello. I made the game under 1280x800. Is there Unity is that depending of type of game screen is simply proportional to scale? I hope you understand me:)
In Edit → Project Settings → Player settings, under the “Resolution and Presentation” category, look for “supported aspect ratios”.
You can enable or disable the ability to run the game with other aspect ratios here. 1280x800 is a 16:10 aspect ratio.