Unfortunately, the Nest app doesn't support newer Google Nest products.
I invested in migrating to the new system but came to a halt due to this
issue so stuck with a mixed dual app system. Google Home is lacking a
lot of features and ease. Still on ...
Issue has not been address. So far Nest system to google home has been a
downgrade. Google team could solve this in a few hours of attention and
programming I’m sure.