Yes, gnome-software has a significant number of patches in Ubuntu:
https://git.launchpad.net/~ubuntu-desktop/ubuntu/+source/gnome-
software/tree/debian/patches
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Sorry, this appears to have possibly synchronized, but contains a
surprisingly large amount of extra strings which are not in upstream.
Unfortunately for me it just looks like it's one of those modules which
doens't synchronize. Marking as invalid.
** Changed in: gnome-software (Ubuntu)