Hi Sarahali10,
Thanks for posting your question about the Find My app. I'll be glad to see if I can provide some information about what you're seeing!
Are you seeing this yellow dot under the People tab of Find My next to their name, or is it appearing on their location on the map? This may be the icon that designates your contact as a "Favorite." If you remove the contact from your favorites, does the dot disappear? From testing, it could also indicate their location is not found.
Generally speaking, you would be able to tell if someone is no longer sharing their location if you see a message similar to the one below: Locate a friend in Find My on iPhone
- "If you aren’t following your friend: You see “Can see your location” under their name. Ask to follow a friend to see their location."
I hope I've answered your question. Take care.