fne8w2ahAndroid's Find My Device network will get a huge upgrade soon – here's how it'll work
Find My Device is completely useless until the device is unlocked. As long as it is rebooted and not unlocked, there is no way to detect its location. Since most phones (if not all), use an encrypted filesystem. With such, no service can’t start if the device isn’t initially unlocked after reboot, including Find my device.
This isn’t only a issue with Google’s implementation, it’s the same with other implementations to.
Not sure how it works on other Android OSs but on Samsung’s OneUI the phone won’t shut down or turn off wireless connections without a pincode.
Pretty sure the hard shutdown still works without any code though