Just an example filenames properly displayed in the native Windows 11 File Explorer and not in the Multi Commander (default font Segoe UI).
As I could attach the files here I copy the names (in the Browser are OK):
TRY3 ПРИМЕР ты ⧸ Za.txt - not showed properly in MC
TRY2 ПРИМЕР 🎸💝 Эта .txt - not showed properly in MC
TRY1 ПРИМЕР (강남스타일) ❤️.txt - this Multi commander shows OK
And the most mysterious is that result varies in dependence what is the symbols arrangement in the name, also how long is the name (because it zooms out to have place in the cell), what font is set, etc. Even sometimes the name is displayed empty!
Like using byte strings for unicode and are not aligned to codesymbol every time. I don't know.