When I open a "Save" dialog, or a file selection dialog, only one type of file is shown. Sometimes it even filters by the extensions.
I don't want this! This isn't Windows, where file extensions really matter! How do I disable the filtering, or set it to show "All Files" by default?
The "Save Page" dialog: you'd think there are only 2 files here, both .html files
Nope! There's lots of stuff!
The phrase "XY problem" was not in and of itself, but the paragraph below it where you explained what you wanted in more detail definitely helped.