Turn off Location Services for the whole device
in iPhone Settings- Settings
- Privacy & Security
- Location Services
- Off
From the vendor’s own page · iOS 27 · iPadOS 27, read 2026-09-17 · checked 2026-09-17 · source: Apple Personal Safety User Guide — Manage Location Services settings, Apple Support — About privacy and Location Services in iOS, iPadOS, and watchOS, Apple Support — Control the location information you share on iPhone, Apple Support — Use Find My to locate your lost Apple device or AirTag, Apple Support — How to turn on Find My on your iPhone, iPad, or Mac
Apple's Find My pages add that the Find My network locates a device over Bluetooth from nearby Apple devices, so Find My is a separate system from this switch.