Only showing the most common values means that sizes of non-maximized windows are lost in the noise. It would be nice to see a cumulative size distribution that would show the percentage of viewport widths smaller than x, for various values of x. Then a developer could easily see that if they make the content e.g. 900 pixels wide, what percent of users will have to scroll the viewport left/right.
I've never found it that useful to see a list of numbers of sizes. I can't visualize them quickly, and in the end the exact pixels doesn't matter, it's the various ratios.
I made this ~15 years ago. Took all the common phone resolutions at the time and scaled so that they all were similarly tall. Then it gave me a good grasp on what aspects my game needed to support. https://imgur.com/a/JT5JyyH
I made this ~15 years ago. Took all the common phone resolutions at the time and scaled so that they all were similarly tall. Then it gave me a good grasp on what aspects my game needed to support. https://imgur.com/a/JT5JyyH