Android 12 update

You don't have the System sound option in Settings > Sounds and vibration?

I have. I already send the screenshot. I doesnt have any option to change the sound of keyboard

You can use Keys Cafe in Good Lock or Fine Lock.

Note: You need a VPN to use Good Lock. Good Lock isn't available in One UI Core devices. To check your One UI version, go to Settings > About phone > Software information and look for "One UI version". If it says "One UI Core version", that means you can't use Good Lock modules.

You just told it.... pero yes available siya sa fine lock, kahit anong goodlock launcher na avilable diyan okay yan