However, this is not available on Sonos or Bose speakers that support Google Assistant. It’s still possible to make calls on Google Nest speakers in other countries, but you’ll need to use Google Meet ...
Google Nest products have historically been low-powered, affordable smart home devices. If Google Assistant is ditched for Gemini, they'll be changed forever.
You can usually make yourself understood by getting closer to a speaker and/or shouting. Nest Hubs not only have Netflix, YouTube, and other apps, but support for any mobile app with Google Cast.