This doesn't make sense to me. Sometimes I need to sit down with a problem for a few days before I can even get to writing code. There is nothing to ship because I'm still wrapping my head around the business logic.
On other days I get nothing done because the most productive thing I can do is rest, or tend to personal matters. That doesn't mesh well with hustle culture, but it contributes to my personal happiness and long term productivity.
I think some developers cannot create and refine a mental model of the finished product well enough for it to be worth it for them to spend days doing it.
Also, many managers perceive only writing code as worthwhile.
On other days I get nothing done because the most productive thing I can do is rest, or tend to personal matters. That doesn't mesh well with hustle culture, but it contributes to my personal happiness and long term productivity.