None of this is required. It only exists so the app can tell you when a recipe needs something you have not got.
Only worth filling in for people who differ from the house. One vegetarian at a table of four, or somebody who will not touch olives.
Anyone who opens this link sees the same week and the same shopping list. Send it to the people you cook with, and keep it somewhere safe: it is also how you get back in on a new phone.
https://grubon.app/join/14a4a1076c1c47728decebef1cc09979b0251731f79f4b1da48d44f1cbfadfc9
Treat it like a key. Anyone with it can read and change your plan, so do not put it anywhere public.