What is the difference, for black its an inaccuracy, for white its excellent?

Why would the same move be analyzed differently?

The move is evidently reviewed by two different computers. They will run at different depths and come to different conclusions.

Endgame analysis is hard and small differences in computing time can make a big difference.

Both conclusions mean that you missed the best move

https://support.chess.com/en/articles/8572705-how-are-moves-classified-what-is-a-blunder-or-brilliant-etc

They will run at different depths and come to different conclusions.

Endgame analysis is hard and small differences in computing time can make a big difference.

Both conclusions mean that you missed the best move.

What is the point of even analyzing that position? White is incredibly winning. Literally every move wins. It's hard to expect an engine to suggest something insightful.