Should applications installed from Flatpak and Snap be tidied at all?

[lawmurray]

Related to #15 , on providing more options for the Tidy Menus feature, I do wonder whether applications installed from Flatpak and Snap should be tidied at all, or at least whether a configuration option should be provided to include them or not (and in that case, what the default should be).

The motivation would be that Tidy Menus is really about decluttering menus with sensible defaults, but most of that clutter actually comes from default applications that come along with the initial installation of a desktop environment, rather than those installed subsequently. Some default installations include a lot of stuff, e.g. the kde pattern on openSUSE and kde-full on Ubuntu. Flatpaks and Snaps, however, are installed one by one and arguably represent a more deliberate choice by the user to want that app. As a user I may, for example, be mostly working in GNOME, but want Okular (KDE) for its richer PDF annotation features over Evince or Papers (GNOME counterparts). If I install Okular via GNOME Software while working in GNOME, I may be surprised if it does not show in my GNOME menu.

Posting this here as a thought mostly, user feedback welcome.