We limit image sizes here to no more than 800 pixels wide (but recommend no more than 700) & 600 pixels high. That way it fits the forum's post space without running off the screen, & fits most user's screens. The board will temporarily display oversized images smaller to fit the space, but during regular maintenance the board will prune/delete oversized images.
So unless I catch the oversized images & resize them before a maintenance cycle, oversized pictures get deleted.
1080p monitors are common now, but to make the OS & web text large enough to read, people usually have their DPI, graphics, or zoom set to an equivalent resolution of 600-900p tall. By the time you add tool, info, or browser bars at the top or bottom, that leaves just about enough room for a 600 pixel tall image.
Modern TVs 4 feet & larger wide that can be used as monitors are also common & cheaper, but most people using a PC are still using 19-24 inch monitors. Text will be too small on those 1080p monitors unless they have the DPI or zoom typed up larger. Typically people with 1080p monitors have the DPI or zoom set so they're actually only viewing an equivalent of 600-900p resolution so they can read anything on them, or the text is just too small.
My primary PC is connected to a 32 inch 756p TV. The backup PC is connected to a 24 inch, 1080p monitor, with the DPI punched up to 145% to be able to read anything on it. My primary laptop has a 15.5 inch 800p screen. My backup laptop has a 11.5 inch 800p screen. I have the DPI typed up to 125% to be able to read anything on it.
My android tablet & phone are 600p. But my regular phone is only 480p.
About half of our visitors are viewing our pages on 600p or less phones or other portable devices. About 1/4 of them are on a 480p or less phone.
I've designed a separate feed of Betty's for mobile users. It should detect if you have a mobile browser & send you to my custom mobile pages of us. If you don't see a "Home" button near the top, but do see a "Mobile Home" button instead, you're getting the mobile version of our sites, not our full PC version.
However, you must hold your phone horizontally to get a normal view of most websites, not vertically like an idiot. People can't flip their computer monitors, TVs, & laptops vertically, so most websites will always be best viewed with your phone HORIZONTAL. I will not be designing vertical websites because some phone users are too stupid to figure out to just flip their phone the right way for the internet & video.
And please stop making very narrow vertical video -- it's incredibly stupid.
https://youtu.be/f2picMQC-9Ehttps://youtu.be/17uHCHfgs60https://youtu.be/xWPJlez-6ngAccording to Webster's dictionary, "pixelated" is a real word in use since 1982. It's odd that most browsers & spell check don't recognize many common computer & internet words.