Where can I find my photos that I tagged with people that are "Not attached to Family Tree"?

For years I added photos through the memories app, tagging people with their names. Over the course of that time, various versions of the Android app weren't allowing/performing PID or name search.

Since 2018, I've added more than 6,000 memories, I thought I'd sorted all the tagging problems, but my dad just sent me a photo of one that I need to fix and cannot locate.

These photos are tagged with the correct person's name, but that person is "Not attached to Family Tree".

Is there a way to sort/filter "memories" I added that will allow me to find all the memories with people who are "Not attached to Family Tree" so that I can work through attaching them?

If so, could you please help me figure that out so I can resolve this issue on so many memories? If there is not yet a feature like this, could you please add it? It would make life a lot easier. 😅