Use the dedicated controller for the house to access various automation apps for lights, thermostats, garage openers, etc.
It is an old Pixel phone.
The pin to unlock is 1234
Android:
Google Home (casting)
myQ (garage door openers)
Philips Hue App (lights)
Thermostats
WiiM Amp (living room amp)
Govee Home (leak detectors)
iOS:
Google Home