I had a bit more of the LCDRs are "Sir" in my HSL squadron, and the CO was the fucking wizard of Oz in his office and only seen for AOMs and HAC checks.
VAW was more of the Callsigns/Names, but for a point of reference, I was only a LT for a year in a 42 month tour in HSL (checked in as an Ensign), and was already a senior LT in zone for LCDR when I got to my VAW squadron.
Similar experience for me as HSC (EXP) ... since we have Dets, the O-4 became "Boss" or "Sir" for the duration of the Det. Same applied when he rolled home into OPS/MO. Most other O-4s not filling one of those two roles typically defaulted to the "O-4s are still JOs in the Navy" mentality with callsigns/first names being acceptable. I had the privilege of working for some great O-4s, both on Det and as AOPS/QAO. They kept it casual and honest, which I appreciated. There was never a doubt when "Sir" was warranted though