It's a shame the Playnite instructions here don't mention the fact that importing Xbox games is not currently working correctly. In fact, the instructions actually encourage the user to select the Xbox library (among other libraries):
"Follow the on-screen instructions to link your Amazon, Battle.net, EA, Epic, Ubisoft and Xbox libraries to Playnite."
Given that this is currently a "known" issue (although I did NOT know), it really should be noted in the instructions - or disabled in Playnite until it works.
I certainly wouldn't have knowingly endangered my sizable game library collection here, had I known the Xbox portion is glitched. Now I have a "clean-up" nightmare and my collection on GG.Deals is no longer accurate for an entire platform.
Prior to this event, my GG.Deals experience has been absolutely stellar. After Playnite...much less so.
Edited for formatting error.