The ◑/etc in the above is not appearing in Pathfinder Kingmaker (the linux port). My guess is that the fonts loaded by the process don't have glyphs for these code points.

My system has fonts with glyphs for these code points, but I'm not that familiar with how unity loads fonts.

Any thoughts on how to address this issue? I'm not sure where the responsibility of loading fonts lies. Is it in the unity engine, mod manager, your code, some font library used by unity engine, some system font library used by mono on linux / .NET on windows?