Find my iPhone uses location services, but I didn't activate it
After upgrading to iOS 15 on my iPhone SE 1st gen, there has been a location services icon in the status bar almost constantly. For the most part it's hollow, but every now and then it's filled for a short while. According to location services in settings, Find my iPhone is the only service that has used location services recently. However, I use location services very sparingly and I haven't used any such app or service for the last 24 hours.
In settings, the icon next to "Find my iPhone" is mostly a hollow arrow, meaning that "an item may receive your location under certain conditions". What does that mean? I have apps that only use location services under the condition that I open the app, but there is no hollow arrow next to them.
I had a similar issue about two years ago where Find my iPhone made a location icon appear in the status bar. I contacted Apple support and I think they said that it was nothing to worry about and it shouldn't be someone hacking my account because I use 2FA. But now it's happening again and it's a bit irritating, if not discomforting.
So basically, Find my iPhone uses my location without me asking for it. What to do?
iPhone SE, iOS 15