Google Duo is a vast improvement over Hangouts for quality and resilience. It has been almost as good as Facetime for me. Duo is also available on iOS and Android.
It is conspicuously absent on any other platform; even Android tablets can't use Duo, let alone a Linux, Windows, or macOS machine. So it's a hell of a walled garden.
It is conspicuously absent on any other platform; even Android tablets can't use Duo, let alone a Linux, Windows, or macOS machine. So it's a hell of a walled garden.