Before buying FIFA 23 specifically for a language like Japanese or Korean commentary, to hear a sample. Many players found the Japanese commentary (Jon Kabira) entertaining but very repetitive. Also note that FIFA 23 online servers are now less populated (EA focuses on EA Sports FC 24/25), so buying just for an exclusive language may not be worth it unless you play offline career/kick-off.
Furthermore, switching languages often triggers a "Re-optimizing Shaders" screen upon reboot, which can take 5–10 minutes. fifa 23 language pack exclusive