Very sorry for your great loss.
When my dear sister in law was dying from metastatic cancer, we tried to take our lead from her. In her case she was very happy to see close family and a few friends. She always seemed so happy to see us and we visited often. Often not for too long because she tired easily.
We often bought food with us for her husband so she wasn’t exposed to cooking smells which made her ill.
One day she wanted to give her jewelry to my daughter and she talked about every piece. It was very moving.
When I said how sorry I was that she was dying she said “ we all die”.
She had such grace and calm and I get very moved now thinking about this.