Check out my Beating Minor Openings study under Chapter 53. It only covers it from Black's perspective but it should give you an idea of what you want to aim for against it. It will also help you with other minor openings you might face except for the English and the Reti
Double fianchetto
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Since last week, I cannot play 10 games without someone playing this opening, does anybody know why did it become so popular out of the blue?