I used to not like this for White, purely as it gives up a centre pawn, but I've learned how many rules of thumb can be broken on many occasions.

Labourdonnais-Loewenthal variation, I had never really played this as White

Perhaps playable, but d6 is better

Breaks the pin

But Black must take with the g7 pawn, damaging the kingside structure, because if Bishop takes...

Black loses the ability to castle and has difficulties in defending light squares... this is why d6 earlier was better.

Quiet move, but this now allows Qd5, as there is no Nb4 or Nd4

Threatening mate in one, Rh8 is needed

It is missed

1-0