I have seen the 850’s on the Airbus and 757 , not so much on the 737..
And I am seeing more and more guys in the bus in EWR with ANR headsets , keep in mind this is a junior base with newer upgrades. Meaning newer generation which I do believe seeks ANR headsets more often.
It’s most of the old school cats that seem to care less about hearing I guess.
What ever floats your boat.