想要对屏幕分辨率和屏幕尺寸做一些澄清

I use: https://quirktools.com/screenfly/ when viewing my web pages at different resolutions. I noticed when selecting the display icon which is the very first icon top left hand corner (It looks like a computer monitor), I see a drop down menu with various resolution dimensions and next to those dimensions are inches. For example, on that list, 1920 X 2000 has "24 inches next to it. Does this mean that a 24 inch monitor will typically by default have a resolution of 1920 X 2000? or is that just a demonstration of a monitor that is 24 inches and is displaying content with a resolution of 1920 X 2000? Or can you assume that most likely a 24 inch monitor will display content with a resolution f 1920 X 2000 by default? when v