2 points
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It’s in the firmware category, i.e. it comes from LVFS. It’s neither a Flatpak nor a DEB/RPM/… package. Many of these, I believe are actually exe files for DOS (happy to be corrected on this, it’s a while since I last read Richard Hughes’s blog).
Iirc, GNOME Software is plug-in-based and the Flatpak plug-in is just one of the plug-ins.
2 points
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I think GNOME Software uses some fwupd library rather than the straight-up command-line fwupdmgr, but yeah, basically.
2 points
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At least the Debian package depends on both, the library libfwupd2 and fwupd. So fwupdmgr should be present too (depending on how the used distribution handles these dependencies).
