Dragon Ball Super Chapter 102 picks up shortly after Goku and Vegeta since Gohan’s ki, and sees Goku then inviting Gohan to a new sparring match on Beerus’ planet to test out this new form.
In Dragon Ball Super Chapter 71, a month-long time-skip reveals that Vegeta is indeed tapping into a Destroyer’s power – even if there’s still a bit of training left to go in using it precisely.