Not that it matters, but nest got folded into google a long time ago. So it’s all part of the google/nest product system ( cameras, speakers, doorbells, mesh wi-fi, hub video screen thing, etc) and they have an online compatibility checker to see if a thermostat is compatible with any system Nest thermostat compatibility - Google Nest Help Some systems that people think aren’t compatible can be rewired to be compatible.
That said, one does not have to have the google nest home devices to have the google nest yale locks. We like it b/c when we visit we can let ourselves in and out It also lets you know when the batteries need to be replaced.