Chess insights feature: How well do I move piece in opening

In my opinion (If I understend correctly) stat: "How well do I move piece in opening" shows to all players highest centipawn loss with queen, than rook, and other piceces.... because if you make mistake (blunder) with high value piece than centipawn loss is higher.

This stat only shows if you play better with knight or bishop (because both are same value).

What do you think?

Whilst I'm not convinced that the stat truly shows how well you move pieces in the opening (at best it's a blunt instrument - though probably better than nothing), I'm not sure that what you say follows either - I can easily blunder a queen by moving a pawn, or a pawn by moving a queen...

Yes you are right on last one. Great example.