I’m not sure what the state of the Nest Binding is due to the Works With Nest program being shuttered. I do know that if you’re using a Google account, this binding won’t work.
There’s an ongoing discussion about a new binding that uses Google Device Access Control, which you should check out. I don’t use it, so I haven’t kept up to speed on the developments.
Not sure if this helpful to you. I just wanted to point you to the DAC discussion in case you weren’t aware of it.