Finding faces with overlapping UVs?

I need to UV a lot of fairly dense (5k~ triangles) meshes using view projection and predictably it is resulting in a lot of overlapping UVs, which I do not want. Hunting them down one by one in the UV editor by sight alone is a total nightmare.

Here’s an example of what I’m dealing with:

I’ve seen a number of addons that seem capable of doing this (GYAZ exporter for example) but they won’t tell you where the faces are, or they will only detect overlapping islands which I don’t have because my unwraps are all a single island.

Is there really no better way to accomplish this other than eyeballing it?