My father got and installed two of the newer nest thermostats, and they are bar none two of the most annoying tech devices I’ve ever had the misfortune of having to fix. Have literally spent hours debugging them when changing the wifi password, they don’t support wpa3, and the setup app feels like a half assed student project. I know this audience probably isn’t interested in getting one, but if one of your family members gets some for free, do NOT let them install them.