TL;DR- an incurious, pollyanna, self-important douche gives himself cringey nickname, never misses an opportunity to brown his nose on the boss, and is generally either a drag or an active adversary in subtle ways at work- how to shut him the fuck up?

I work in a small wood shop with 6 total employees including the owner/boss. The owner has been in this role/biz for some 20 years, his number 2 has been with him 18 of those years and has also received formal training at renowned trade school in NE, but has returned and, as stated, is the #2. Then, there is a guy who has been in construction 20 years and knows a lot outside of woodworking- specific info, but has way more other practicable knowledge and experience than many. There is another guy who is younger, but has been with the group 5 or so years and met the owner through one of the classes he would teach. I personally have been woodworking on my own for a few years, have built some cool stuff for my own clients and myself and make it a point to always receive feedback with an understanding and a thank you. Also, I've been working building things for about 10 years, so I'm not new to this type of song at all.

Then there's the guy- THAT guy. He is a little younger than me and this is his first manufacturing type job. He is a self- described "all or nothing" type of guy- For example: when he found out that a couple of the guys like to ride bikes, he became mr. Bike guy. Always hounding the other riders about bike stuff, went and bought this bike, talks about bike non stop... when he found out that one of the guys is a coffee nerd, he became mr coffee nerd- always jabbering about coffee. If i have my headphones on and I'm busy on a machine, he'll not hesitate to come and ask me something or talk about something or whatever, but if HE is in the busy mode and you approach him, it's always an eyeroll/"wtf do you want" type of vibe. He recently decided that he's an exercise guy, too- so he's listening to exercise podcasts (tf is that, anyway?), he's jogging in place, he's judgmental about what others eat when the group has lunch or something... He's given himself a nickname and uses it for himself in the 3rd person (ikr, wtf?). He calls the boss "chief" and never misses a chance to praise him in a group setting. "Chief" either doesn't notice this behavior, doesn't recognize how cringey and annoying it is -or- he likes it or something. A couple of the other guys in the shop have made comments about this to me in obvious attempts to figure out if they were the only ones to notice, and so on.

I don't know for sure, but i think that when he gets 1:1 with "Chief", he subtly offers little bits of disdain for me and/or others. I think this because one time i was using a tool in a way in which he was unfamiliar, since he's basically a noob, and offered me a "pro tip" on why it was bad. While the thing i was doing was admittedly unorthodox, it was something that i and many others do regularly with no ill effect. It's even considered unremarkable in most settings, although somewhat unusual to those with little/ no experience- like THAT guy. That day, it was just the two of us at the shop, and later the boss came and pulled me aside and questioned what i had done, because THAT guy had tattled on me. I explained to the boss what was actually going on and he was like "oh", but i don't think he registered the interpersonal friction created here by THAT guy trying to teacher's-pet his way to superiority.

Also, the guy is a mega church type guy who has told people not to "take the big guy's name in vain" and shit like that- will mention his mega church bullshit periodically and is generally just an unlikeable douche.

My question: What do you do with a guy like this? Anyone have any advice on how to counter his bullshit? I'm not very confrontational, but I'm certainly not gonna let some douche undermine me and my experience and my work. (Btw, I've been told by both the boss and #2 independently that i produce "some of the cleanest work they've seen", which i was very glad to hear as i take pride in the work i do, so i know that my product is good).

Any insight, advice or whatever else is greatly appreciated!