Beginner doubt?

@farmersrice
but thats still looks like queen exchange isn't?

No because you have gained a free bishop from the opponent

@farmersrice
yeah, if queen takes bishop then only one bishop, if not 1bishop+1rook thats the point right?
thanks

Where are you going to get 1 bishop + 1 rook from? Just look at what stockfish says and play out your moves and it will show you why it is wrong.

Bxg6 -fxg6 -Kxg6 -Bxd7- Ne5 -Bxc8
this happen if bishop takes queen right?

Yes that's why black doesn't take with the bishop and instead backs king away