Yes I heard this too. Frankly something doesn't click for me, I can't say what exactly. The brain is far, far more complex than that, we can't boil "child language development" down to "read them 1+ hour/day" and "limit screen time".
The thing is: it’s hard to find actors for a play in the child’s bedroom at night. It’s hard for parent to come up with 200 different well-plotted stories at the appropriate level with visual props. Etc. But after 2 years of daily practice I can read a picture book decently (including funny voices, etc.) while half-asleep and consciously thinking about something unrelated with half my attention.
The kind of logical reasoning, grammatical variety, vocabulary, etc. used in books is not literally impossible to imitate with some other medium. It’s just a lot more work and in practice not really done.
Because, I don't know if you have children, I do (8 and 6): you can't read them a different book every evening for 1h. Even for more than 5 minutes.
You just can't. Life is messy, there's no place for such idealistic hobbies.
That's why I can't relate to those "advice" (too use kind words), I just don't think they are relayed by real parents.