For your Google Nest or Google Home speaker or display to share personalized 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 your Google Nest or Google Home device.
- At the top right corner, tap Settings .
- Under Linked accounts(s), you'll see the Google Account(s) linked to this specific device.