Often when i see these productivity and private/working habits interviews i cannot stop thinking if people live in the same world as me. I saw a similar approach recently by Lex Fridman but i saw in the past similar tech people with very similar schedules. At the same time i cannot stop thinking how much real it is, lets see in a period of 1 month. Example if you have to go outside you cannot easily predict and keep your schedule since you depend on lots of external factors like: traffic, weather, etc... etc... Instead i want to think that these people try to follow some sort of schedule during their routines and they mention whatever they feel it should be the perfect schedule for them.
If, for one day, i would follow a similar schedule i would be actually very surprised. In my actual life, i work more hours (but not crazy non-sense 60h week like tech people often say), need to have lunch and dinner breaks, take a shower, breakfast, take care of kids and play with them, find time to go to grocery, help with the usual homework, find sometime for myself to watch netflix or play some game in my PC, go outside and then at the end of the day find sometime to sleep. On weekends plan something with family, take longer breaks for lunch/dinner, etc...
So yeah, i guess thats how life is.