just writing to confirm that the file preview on Windows does indeed work correctly if you choose the Preferences option:
Interface->Windows->GTK open/save dialogs.
if you choose the native dialogs option, then the preview for svg does not work. I would propose that this be marked as "Won't Fix". I personally prefer the native dialogs, but having no preview is a very small loss compared to the comfort and reassurance of a standard native dialog, so I don't care if this gets fixed or not (and clearly the answer will be 'not').
just writing to confirm that the file preview on Windows does indeed work correctly if you choose the Preferences option: >Windows- >GTK open/save dialogs.
Interface-
if you choose the native dialogs option, then the preview for svg does not work. I would propose that this be marked as "Won't Fix". I personally prefer the native dialogs, but having no preview is a very small loss compared to the comfort and reassurance of a standard native dialog, so I don't care if this gets fixed or not (and clearly the answer will be 'not').