For your Google Nest or Home speaker or display to share personalised results, you must be signed into the same Google Account that is linked to the device.
Check which Google Account is linked to a speaker or display
- Open the Google Home app .
- Tap Favorites or Devices .
- Touch and hold your device's tile.
- Tap Settings Recognition and sharing.
- Under Linked accounts(s), you'll find the Google Account(s) linked to this specific device.