Latex is stuck in the past. Academic publishers even more so. It's 2022, and I can't use slightly non-standard letters (e.g. non-Latin characters) in my papers

Latex is stuck in the past. Academic publishers even more so. It's 2022, and I can't use slightly non-standard letters (e.g. non-Latin characters) in my papers without jumping through hoops. It's anyone's guess as to which ones will work and which won't. The language was designed in the 80's and it shows, many commonly used packages are severely outdated and nobody cares.