Just found an answer to our question here:
https://www.googlenestcommunity.com/t5/Nest-Thermostats/Can-I-continue-using-the-Nest-App-after-September-29-2023/m-p/477319Everything
will continue working after 29th September, so fine to continue with the...
I have the same question. Will my Nest Thermostat and app continue to
work after the 29th September without switching to the Google version?
Seems to have been very little notice and a bit confused. Thanks