Why is he wearing a mask?
I had an HNL-ICN-LAX-HNL cargo flight with myself and 3 FOs last month. When we met in the HNL lounge prior to the flight, one of the FOs promptly demanded that not only do we all wear masks at all times on the aircraft (it was just us) cabin or cockpit but that we also wear a double layer of masks. I told him no and he started objecting. So I pointed out to him that the FAA and airline says masks in the cockpit are at the discretion of the individual pilot, that breathing you own exhale for hours on end distracts from alertness (at least for me) in the cockpit for multiple reasons (miserable, uncomfortable, not fresh air, etc.), that in the cabin we were relaxing in first class seats where he could have 30 feet between himself and the other off duty pilot - or he could go 150 feet away to the back of coach, that the pilots in the cabin are supposed to be resting and that being uncomfortable while breathing your own exhale doesn't make for good rest, and if he didn't like it he could call the Chief Pilot or Crew Scheduling and remove himself from the flight for anxiety. He declined.
He wore a double layer of masks, a face shield and rubber gloves the entire time throughout the 4 days and 3 legs. The other FOs and I didn't. His continuing lectures about how he was "protecting us" were annoying and by halfway to ICN, we had all told him to just shut the fuck up multiple times.
He also wanted to continuously give the orange man bad, lefties good talk to the rest of us who were all Trump supporters. None of us wanted to talk politics (never do at work). He was a very annoying FO.