Comment by necovek

Indeed: most notably, Croatian, Slovenian, Bosnian, Serbian and Montenegrin are all unambiguous with Cyrillic, but Latin script dominates, even in officially Cyrillic-first Serbia.

Again, it is seen as a political tool (pro-West or pro-Russia), when Cyrillic is technically better suited (there is certainly history as well, but that's very mixed up in the region).

Again, I am saying this as someone who has worked to implement things like full-text search, collation (lexical ordering/sorting) algorithms and tables, fonts and ligatures, functions like uppercase/titlecase/lowercase...

Eg. an already complex Unicode Collation Algorithm tables can never support exceptions with digraphs like "konjukcija" (nj is usually a digraph, but not here), etc.