Pyidaungsu Font All-in One ((link)) -

Myanmar is a land of many voices. The Pyidaungsu font is a true "all-in-one" because it supports not just Burmese, but also ethnic languages including Shan, Mon, Karen (S’gaw and Pwo), Kayah, and Rumai Palaung .

on the font file and select "Install for all users." pyidaungsu font all-in one

It is the mandated font for the Union Government of Myanmar. Myanmar is a land of many voices