Seriously, this was a huge thing in C and C++, where you had to know/remember/know to look up very specific error codes and conditions in an API and if you didn't then it was very much considered to be a skill issue. This was maybe 15 years ago.
It was not unless you were part of some very weird circle. There was always manuals and other references that listed everything about a platform or library. Then we got ‘man’ and ‘info’. And I remember being able to download the full docs of windows’ various documentation.
That’s like saying as a writer you were looked down at because you had to look at a dictionary every once in a while.