I was last through there in early Jan. I did not see any signage for Global Entry at the customs exit point - neither a special line nor line-cutting privileges. I did not ask CBP staff as the line was fairly short anyway.
(OT - but it was also the first time I ever got directed anyplace other than to continue to the exit. Turned out to be a quick luggage X-ray, I guess just a random thing to ensure compliance. Took about 3 minutes, so not a big deal)