If there ever becomes a Texan wikipedia you'll know why.

Serbian is typically in Cyrillic - but everyone knows/uses both Cyrillic and Latin. First year of elementary school you learn reading/writing in Cyrillic, second year it's Latin, and in third you get first foreign language (e.g. German, French, English... My parents had Russian, but both my 11 years older sister and me had German as first foreign language). And in 5th year of elementary school it's another foreign language (for sister and me it was English). Street signs - especially highway/cities are in both scripts.

Croatian is Latin only - and IIRC only people born before ~1980 or so were taught Cyrillic in school (unless they are "Serbians from Croatia"). Street signs are only in Latin, but in past I think they had kind of dual script signs like in Serbia.

Bosnian ... Ugh well Serbian/Orthodox-Christian majority parts (Republika Srpska) have signs only in Cyrillic. Non Serbian parts (so Croatian and Muslim/Bošnjak parts) have signs only in Latin.

So I guess BiH (Bosnia & Herzegovina) might be the only valid use case for Serbo-Croatian?

Montenegrin used to be exactly the same as Serbian (so Cyrillic, and different dialect/accent and very few actually different words). But they also started inventing new words to distinguish themselves from Serbian - so I'm not really sure which version of Wikipedia they would default to.

BTW all the words can be transliterated between Latin and Cyrillic with dummy search/replace. For example "đ" = "ђ" = "dj" (if you don't have "fancier" version of "d" on your Latin typewriter/keyboard)

Meanwhile (Former Yugoslav Republic OF /and now known as just Northern/) Macedonia was always Cyrillic (except like in Kosovo there's many Albanian speaking people there, and they use mostly Latin, though I can't say for sure about Christian Orthodox minority in Albania).

And despite being rather different than Serbian/Croatian (let's not stir up flames by saying mix of Serbo-Croatian and Bulgarian). When I run into random Macedonian people - they literally say "Two countries (Serbia and Macedonia), but one nation".

PS. I'm originally from Belgrade/Serbia; Wife is 1990s refugee from Croatia; When we were born it was one bigger Socialist Federative Republic of Yugoslavia; We're living in The Netherlands; Our kids have Serbian and Croatian citizenship; Friends and Family are scattered across that former/bigger Yugoslavia (mostly Serbia and Croatia) and some live in the rest of Europe.