The major carriers perhaps, but support among the MVNOs isn't universal. Number sharing support for smart watch usage is almost non-existent among the MVNOs in Australia.
Eg. ALDI (yes, the German supermarket chain run a MVNO in Australia), have been saying esim support in the future since 2021.
Eg. ALDI (yes, the German supermarket chain run a MVNO in Australia), have been saying esim support in the future since 2021.