"Ask where to download" dialog should be reworked (or not offered) when running in flatpak
The "ask where to download" dialog should be reworked (or not offered) when running in flatpak because GtkFileChooserButton does not work well enough inside flatpak. The path selected by the button is only used as the default path passed to the GtkFileChooser that will be opened by the portal process, and the user experience is wonky as a result.