Simplest option. Use a cheap always-at-home device.
- Get an old iPhone or iPad.
- Sign in with your Apple ID.
- Put it at home, plugged in, connected to Wi Fi.
- In Find My, share location from that device, not your main iPhone.
- On your main iPhone, turn “Share My Location” off.
Anyone checking Find My sees you “at home” on the spare device. Your main phone stays private.