Is it possible to select a default country for sign-in with a phone code on the selector?
Unfortunately, this option is not available yet. But I will add it as a feature request
This should be working based on the browser location info I think
It sounds like a great solution, but it is not working like that today.
In general in depends to the browser location and it should work. This is a tested feature, but you yourself cannot select a default country from the options. I was referring to this.
Let me know if you have more questions.