The way he describes using his computer (dedicated PC, laptop in drawer, phone left on charge) is exactly how I use my tech and always have (as phones and laptops became more portable/available).
I'm in the weird position of been a programmer who likes computers and dislikes basically all other consumer technology (phones, laptops, consoles, most domestic smart devices etc).
I don't like interruptions, technology serves the user not the other way around and should always be pull not push (in my personal opinion).
I didn't carry a cell phone for long enough (I do now) that people looked at me like I was nuts. I viewed a cell phone the same way most people thought of a pager (remember those things?) - for other people's convenience, not mine. If I am talking to someone in the hall, they will answer their phone, like people that call are more important? Thankfully I think people have realized that - some of the time.
You're not alone.
I think everything peaked in 2014, phones were firmly "second" devices and there was a lower expectation that people were glued to them constantly.
Laptops had crappy batteries and performed significantly worse for more money, so were only used by the dedicated. (or, the rich in the case of some software devs in SV/London).
Most people still had desktops and using computers was its own "thing", then you went away and lived your life.
Now we're terminally online, internet culture is the pervading culture of the west... I've never liked computers less than now... but I still love computers :(