[deleted] The problem is that they don't support a lot of countries and carriers, and that should be fixed in upcoming updates. That's why I'm asking if there are any upcoming updates that would fix that.
I think we will be able to help you better if you provide us with more detail.
I found a random post about "5g not working". That post is about how to override incorrect carrier settings. That post may or may not be about your situation, but if it is then we do not know a schedule for Google releasing a carrier settings fix for your carrier.
People here may (or may not) be able to help you with the problem you are having if you provide requested information. For example, which carrier are you using? Does VoLTE already work for you?
Of course, you are not required to answer questions!