This is what AI says about the app. Just looked and don't have it on my S25 ultra
MFContents app, which is related to Samsung Find (formerly Samsung Find My Mobile or SmartThings Find).
Purpose:
Samsung Find is a service that helps users locate, lock, and manage their Samsung Galaxy devices remotely if they are lost or stolen.
Features:
It allows users to find their phone's location on a map, lock the screen, display a message, activate a ringing sound, back up data, and even erase data remotely.
Offline Finding:
A key feature is "Offline finding," which allows other Galaxy devices to help locate a lost device even if it's not connected to mobile data or Wi-Fi, by acting as "Find Nodes".
Device Compatibility:
Samsung Find can be used to locate various Galaxy devices, including phones, tablets, watches, earbuds, and SmartTags.