> usually the filename and an image preview are the only pieces of information you get about an image no matter where you are
that's obviously false, it entirely depends on "where you are"
> ignorant of the literal entire world not doing this
The entire world is ignorant enough to not know that png is lossless
Also, don't hide behind the entire world, this conversation is about you "i don't look at dialogs before i download, save, or pick a file from a directory listing"
> fail to understand how windows explorer is not relevant when you can't just set the image viewer for save/open dialogs on windows, that's just not a thing that's possible to do
(by the way, it'd be entierly possible to add metadata even in Windows Explorer when this https://github.com/saschanaz/jxl-winthumb/issues/26 is added)
but you're not forced to just the save/open dialogs of the default file manager. You can even use a more convenient workflow of navigating in your file manager and making the open dialog switch there, and within your file manager you would have more info vs WinExplorer
The "save" dialog is worse, so that would require implementation of the feature mentioned above
> when you see .png you know that it's always lossless.
that's also obviously false, lossless is a feature of the workflow (your note conveys some familiarity with this simple fact), not just the file format, and since you don't know how much loss there was before you get to download the final PNG, you can't say that it's lossless
Yes, that's a useful heuristic, but then it's just that, not "always"
Likewise
> and even then, do i want to know the quality level of an image only after saving it manually? also no
For the same reason, you actually don't know the quality level of an image for any format
> it's not hard to understand how png will stay relevant for at least this reason
it't not hard to understand, yet you don't. PNG will stay relevant simply because widespread formats are sticky and it takes a while to switch even to a strictly superior alternative like JXL