99% of the tracking notifications are given to my family members. It’s hilarious that you can’t “join” a family members tag so it can be shared within the family.
You can choose to supress indefenitly.
Source: have iCloud family with like 10 airtags.
Of the four pack I bought one is useful for finding my keys, one is a PITA in our car, and two I never got around to using.