Installation NEST thermostat

I have a question about the NEST integration. Last year I installed the integration. It all worked fine. Google has since made changes that made it no longer work. I tried to do the installation again. I have followed the procedure as described on the page: home-assistant nest. At the last step, linking I get an error message. Since I can’t find the cause, I contacted Google support.

They will send the following message by email:

Following our chat this morning about Nest integration, I can only send you this link upon inquiry to our technical department. The option for Nest integration via computer is no longer available.

My question is, is it no longer possible to use the Nest integration on home assistant?