> Of course, the user who named those files probably wants file-9.txt to come before file-10.txt. But 1 is smaller than 9, so file-10.txt should be first in alphabetical order. Everyone understands that, and soon people learn to put enough leading zeros if they want their files to stay sorted the way they like. Well, apparently all these operating systems have decided that no, users are too dumb and they cannot possibly understand what alphabetical order means. So when you ask them to sort your files alphabetically, they don’t. Instead, they decide that if some piece of the file name is a number, the real numerical value must be used.
I think there are many things wrong with your assessment of the situation.
First, where does it say in these file managers that they're sorting by alphabetical order? I see that you've specified that you want the files sorted by name, but I don't see that you've specified you want them sorted by name alphabetically. And what does "alphabetical sort" even mean when you're sorting characters which are not letters? What you mean is probably "lexicographical sort".
Second, you admit yourself that users probably want natural sort. Why would you expect these products to do the thing which they know users usually don't want by default? That just seems like bad design to me. They know users usually want natural sort, and you know users usually want natural sort, so why would you expect the default behaviour to be a lexicographical sort?
Third, just like how you've learned to work around the lack of natural sort in poorly designed products of years past by adding leading zeroes, you can just add trailing zeroes to get the lexicographical ordering that you want. Why do you seem to be implying that the latter is more user-hostile than the former? It doesn't make sense to me. A decision had to be made about what sort to use and they picked the one that most people want. Isn't that what we should be expecting in a product that caters to its users?
I see in other comments you've suggested that there should be a separate option for choosing between lexicographical sort and natural sort. But in the past, when lexicographical sort was the only option, why weren't you complaining about it being user-hostile to only have one option then? Why is it only when the default is something you're personally not used to that it warrants complaint? And where do we stop, do we have separate controls for every single sortable string field to determine whether it should be sorted lexicographically or naturally? Or just the name field? Don't you think that is going to lead to interface bloat?