P: Built-In Duplicate Finder

With all the great AI stuff Adobe is rolling out, I con't understand why Lightroom classic doesnt have a duplicate finder function.  I have used both Teekesselchen and duplicate finder for years and they are ok imo but not near as good as Peakto or Excire.  I currently am subscibed to peakto would rather give Adobe my money (because I aready do).  Excire is expensive for a plugin and it does not make sense to me why this technology is not baked into lightroom.  Is there a reason im not aware of?  Is in coming?