you see that to an extent with the use diacritics in some languages. for example "ch" or "cz" in czech is written as č. here is an interesting article listing

you see that to an extent with the use diacritics in some languages. for example "ch" or "cz" in czech is written as č. here is an interesting article listing digraphs in various languages with latin script that have lots of examples where the same sounds have a single letter in other languages: https://en.wikipedia.org/wiki/List_of_Latin-script_digraphs https://en.wikipedia.org/wiki/List_of_Latin-script_digraphs