What happens to a users favorite if you delete the row in Google Sheets?

Hi! I have a Google Sheet where i have a column with 20 different categories.

Every day I go through the sheet and remove rows from some categories, and add new rows in between existing rows.

What happens if a user favourites row 397 today, but tomorrow I have updated the sheet, and that row is either deleted, or might have become row number 412?

It depends on what field you set for the favorite action. How did you set that action, is it on an image, a card or a component etc?