https://bugs.winehq.org/show_bug.cgi?id=53019
--- Comment #7 from Victini v_winebugs@outlook.com --- Running CachyOS with wine-staging 9.21, and it seems like the bug is fixed? Tested with Arial (or its replacement rather, since I don't have allfonts - just tahoma and cjkfonts), Times New Roman and Noto Sans, and CJK fonts are being redirected just fine.
Will test on a clean install of Arch Linux in a virtual machine as soon as I can, in case it's something related to my set up of CachyOS. If anyone else is able to test, let me know.