The file paths supported by the software cannot contain emoji (e.g.:🦌🐆), and it is hoped that recognition and decoding of such characters will be supported.
See the docs on Windows Unicode file names (https://exiftool.org/exiftool_pod.html#WINDOWS-UNICODE-FILE-NAMES) and FAQ #18 (https://exiftool.org/faq.html#Q18), as well as this thread (https://exiftool.org/forum/index.php?topic=9759.0).
Myself, I was never able to get unicode characters to work on the command line until I found this StackOverflow answer (https://stackoverflow.com/questions/57131654/using-utf-8-encoding-chcp-65001-in-command-prompt-windows-powershell-window/57134096#57134096). That option can mess with fonts in some older GUIs, though.
Thanks,understand.