My grandmother died in hospital in 1974. Her death certificate includes her date of birth, usual address, in place of occupation it has her deceased husband's name and occupation, then the informant's name, "qualification" = daughter, and her address.
So quite a lot of information but depends heavily on the informant I suspect. I don't recall my mother being present at the time of death. If anyone had asked me I would have said that she was phoned and went to the hospital, but I may be wrong about that.
A lot will depend on who was around to register the death.