It’s a quads dominant exercise if you do it right.
A snatch grip deadlift is NOT a regular deadlift with a wide grip. The purpose of the wide grip is to be able to get your hips down lower in the starting position while still having the shoulders above or slightly in front of the bar.
If the hips are lower, the knees are bent more, the quads are stretched more and they are recruited more.
So when you lift the weight DO NOT shoot your hips up… the torso angle should remain the same until you pass the knees.