This is getting substituted from another font (the Ubuntu Font Family does not cover Thai).
Assuming that right-clicking with Charmap is leading to the same result in the browser, then this is being substituted in from the "Kedage" font.
This is getting substituted from another font (the Ubuntu Font Family does not cover Thai).
Assuming that right-clicking with Charmap is leading to the same result in the browser, then this is being substituted in from the "Kedage" font.