This is a nice feature BUT is there a way to silence the notification every time someone adds something to the grocery list? Getting 20+ notifications all at once while my wife fills out the grocery list is a little annoying, lol.

Re: "is there a way to silence the notification every time someone adds something to the grocery list?

As someone adds items to the grocery list you are notified each time.

After 20+ constant notifications in 10 minutes gets quite annoying."

Apple Support's online article: Share lists and collaborate in Reminders on iPhone - Apple Support

says:

Turn notifications on or off for a shared list

1. Open the Reminders app on your iPhone.
2. In the shared list, tap , then tap Manage Shared List.
3. Below Notify When, turn on or off any of the following:

• • Adding Items: Receive an alert when someone adds an item to the list.
  • Completing Items: Receive an alert when someone completes an item on the list.