In title bar, Ñ, Ằ, ขึ้น and similar diacriticals are clipped in Linux

[Bas (Bas van Leeuwen)]

Just to be complete, here are the characters unclipped: Ñ, Ằ, ขึ้น

This is how it renders for me (Safari, Mac)

Compared to the screenshot, they indeed have more ‘stuff’ above the characters.