The Chinese Search app supports only Chinese (and a bit of English here and there) and cannot be translated. It's basically a web page.
Highly recommend a third-party search app such as this...
Was already fixed a while ago. It's a minor issue, wait for next release. Those devices don't even support Advanced textures officially, so don't tell us what should or shouldn't "work properly". We could have just removed support for it for Android 14 devices.
Then I'm not sure why you're asking questions about stock ROM here, without at least disclosing it.
The switch is present on our ROMs, but on stock launcher it's only visible for Japanese KDDI builds.
Works fine here. When enabled, a button shows on the left side of the screen when pressing the volume button while audio is played from a certain app or apps.
MediaFire (where you uploaded the fix) doesn't expose the date. The modem.img there might be outdated, regardless of region.
You should not have included it there at all unless an exact compatible ROM version is specified.