Worst dev I've interviewed?

"Archie" ran his own consulting business for almost 20 years. Prior to his interview, Archie sent HR (to send to us) his company's website, where he had samples of code for us to review (which was not bad, this guy did know his stuff).
What I found odd was Archie was the lone wolf at his company, but everything I found about him (the about page, his bio, etc), Archie was referred to as 'Mr. Archie Brown'.
Ex. 'Mr. Archie Brown began his humble career and 'Mr. Archie Brown is active in his church and volunteers his time in many charities ...'
Odd to refer to yourself in the third person on your own site, but OK, I like putting hot sauce on my mac & cheese (no judgement here).

Then the interview..standard stuff, then..
Me: "Given your experience, this is an entry level developer position. Do you feel the work would be challenging enough for you?"
Archie: "Yes, Mr. Archie Brown would have no problem starting at bottom. You see ..."

Almost any time he would reference himself, instead of 'me' or 'I', he would say 'Mr. Archie Brown'. As the interview continued, the ego and self-importance grew and grew.
My interview partner wanted to be done by using the escape clause, "PaperTrail, I'm good, do you have any questions?"

Yes, yes I do. I was having too much fun listening to this guy ramble on about himself. I made the interview go the full hour with the majority of time 'Archie' telling us how great he is.

The icing on the cake was my partner caught his gold cuff-links and tie-pin where his initials and how he kept raising his hands and playing with his tie to show us (which I totally missed, then was like "oh yea, that was weird")

After the interview, talking with HR:
HR-Jake: "How did it go?"
John: "Terrible. One of the worst. We would have been done in 10 minutes if PaperTrail didn't keep asking questions."
Me: "Are you kidding!? I had the best time ever. I wish I could have stayed longer."
HR-Jake: "Really? This guy was so full of himself I wasn't sure to even schedule with you guys. With his experience, I thought it deserved at least a round with you two. You think we should give him a chance?"
Me: "Hell no. Never in a million years, no. I never in my whole life met anyone with such a big ego. I mean, he kept referring to himself in the third person. Who does that?"
HR-Jake: "Whew!...yea, he did that in the phone interview too. It was a red flag for us as well."

Couple of weeks later I ran into HR-Jake in the break room.
HR-Jake: "Remember Mr. Archie Brown?"
Me: "To my dying day, I will never forget Mr. Archie Brown."
HR-Jake: "I called him later that day to tell him the good news and he accused me of being a racist. If we didn't give him the job, he was getting a lawyer and sue us for discrimination."
Me: "What the frack!"
HR-Jake: "Yep, and guess what? Got a letter from his lawyer today. I don't think a case will come in front of a judge, but if you have any notes from the interview, I'll need them."
Me: "What are we going to do?"
HR-Jake: "Play the waiting game between lawyers. We're pretty sure he'll run out of money before we do."

After about 6 months, and a theft conviction (that story made the local paper), Mr. Archie Brooks dropped his case (or his lawyers did).

One of the first things I learned while screwing around in Linux for the first time was the calendar in the terminal. I never thought I'd have an actual use for cal, and it just sat in the back of my mind for a year.

Then, two weeks ago, I needed to find the date for a saturday in December, because I thought it was the seventh. My duck was like "Hey, your terminal is right there, why not use that cal function instead of looking for your calendar?" And I was like "Dude, that's genius!"
I have since done it thrice more for various reasons, and it has saved me like four minutes in total. I love all the little things like this in Linux (I'm pretty sure Windows and obviously MacOS do the same thing with practically the same command, but shut up and let me enjoy myself (and it just feels more accessable in Linux because I use the terminal so much more often))

So yeah
Stuff

God I need something to do...
Wait! I have several things to do! The first one will be making a list of all my projects.
Or spending another two hours on devRant.

I have joined a new company recently and I'm worried.
Really have worry because of my people skills and little doubt on the manager. I mean what do I know I just joined but still overthinking it.

There are people who speak confidently and I feel intimidated because in the casual conversations I don't feel like I can contribute at this point at least, it's been a week only. Other thing is as I do not know much about the work, I can't speak in the meetings. I know that I'm expecting a lot from myself here as I just joined but I have a history of being silent in the meetings and in my previous organisation I could deal with it as I got comfortable finally.
How can I be more interactive with people, given that some are cold?

About my manager, he is young. He definitely has a good IQ that's why he is a manager now.
The thing is, he talks a lot. Conversations are not 2 way, and he kept on saying things without even understanding that I'm overwhelmed. I have previously told him that I am overwhelmed, he listened, took 2 minutes and continued with his all work related talks.

I don't like the way he's stating his expectations from the time I didn't even join. He told me everything about the organization, on first day, he gave me a 2 months rough expectations of me. I don't agree with all the points he makes but it doesn't seem plausible for me to interrupt and say my thing. For example when he stated his expectations, I should have stopped him and politely tell that it's too soon we can discuss these things in upcoming weeks. But just because he continues rambling, I can't say it. It seems a small thing but I know it's not proper conversation and will create issues for me. As I have had similar kind of manager before, who used to ramble and didn't stop talking. But couldn't understand my problems etc.