This tutorial is courtesy of tucker from the Hogwarts Legacy Modding discord server.
..\Steam\steamapps\common\Hogwarts LegacyPhoenix\Content\Localization\WIN64Phoenix\Content\UI\FontsCreate a folder anywhere on your PC, naming it whatever_P. Copy your exported Phoenix folder and place it there. (This will keep the directory structure of .pak file)
Drag and drop .BIN files into Parseltongue.exe (one by one) and you will get a .JSON file. Try editing some of the texts that can be tested easily like “WARNING: Read before playing.” Save the files drag and drop them back into Parseltongue.exe, you’ll get .BIN files, and then replace the original files with them.
They are basically .TTF files. You can just find new .TTF fonts that support your language and change their extensions to .UFONT then replace the original files
Personally, I use FontForge to merge the original fonts with my fonts.
Drag and drop your whatever_P folder into UnrealPak-With-Compression.bat, you ‘ll get whatever_P.pak.
Put your .PAK in \Hogwarts Legacy\Phoenix\Content\Paks\~mods
Run the game and see if it works