Queens as tiebreaker
Geoff, Queens is small but mighty and can serve as a "tiebreaker" of sorts for the district. In a close election, the Nassau portion of the district tends to end up pretty close to tied, and Queens has the potential to put Democrats over the edge. The closest race the district has seen in recent years was the 2022 state comptroller race, where Democrat Tom DiNapoli lost the 3rd by 2 points. He lost Nassau by 4 points but won Queens by 6 points. Of course, that wasn't enough to win overall, so Suozzi will have to do better than winning Queens by 6, but like you said, he looks on track to do so.
For reference, though, Biden won the Queens portion of the district by 20 points in 2020, and even that pales in comparison to the 30+ point margins that statewide Democrats achieved in 2018. That's a good reminder of how dire the situation has gotten for Democrats in recent years here.
—Jacob Rubashkin, Inside Elections