Duplicate finder in recent update

[quiltermn]

I thought a recent update, maybe February, had a duplicate finder function. I haven't been able to find it. Any help would be greatly appreciated.

[dj_paige]

Such a thing is not in Lightroom Classic.

[Ian Lyons]

There's a 'Show in Finder' function in the grid and loupe view context menu, but no duplicate in Finder.

[Rob_Cullen]

The Teekesselchen Plugin does a reasonable job of finding images in the Catalog that have matching metadata (but not visual look-alikes).

Duplicate Photos (Lightroom Queen)