Perhaps it will be a new Nest thermostat
It looks like Google has decided to return to its Soli technology again. At least a certain device from the company, equipped with such technology, appeared in the FCC database.
This device supports Soli's 60GHz short-range radar technology, Wi-Fi 802.11n and Bluetooth. What this device is is still completely unclear, but there is speculation that it is the new Nest smart thermostat. Perhaps he needs the Soli chip for gesture control, as was implemented in the Pixel 4 smartphones. Also, the Soli chip could, in theory, be useful for the new generation Pixel Watch.
It's worth noting that in addition to the Pixel 4, the Soli radar was used in the 2020 Nest thermostat. There it was used for the function of identifying the user in front of the device.