Abdusattorov deviates quite early. This move is not very popular, although it is very reasonable. The idea behind supporting the b4-bishop is to prepare the ...Nc6-e7 maneuver.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8b4  5. d1a4 Gukesh repeats the move that he used successfully in round six against Sargissian. 5... b8c6  6. e2e3  6... e8g8  7. c1d2 