Because of the distance I went to stay at their house for a week after my first grandchild was born and when her daddy had gone back to work.
I concentrated on the household tasks: cooking, cleaning, laundry, tidying, gardening, walking the dog.
It left my daughter free to concentrate on her baby and herself.
I did get some cuddles that week (and have had plenty since, she's six years old now).
I also volunteered for the late night feed one evening so mummy and daddy could both get some much-needed sleep.
When their second baby was born I was asked to go and stay when he was three weeks old, again when daddy went back to work.
This time round I was surprised to be handed the baby to feed, change etc far more frequently!
I'd say play it by ear and don't be afraid to ask your daughter what she would prefer you to do on a day-to-day basis. She won't know how she feels until it happens.
Concentrate on boosting her trust in her own abilities if you think she's lacking in confidence.
Have a lovely time welcoming your new family member 🥰