You could install it manually from here: https://www.apkmirror.com/apk/xiaomi-inc/camera-xiaomi/Ive flashed the new rom with only hope that it might be including the new camera app 4.5.000511 but unfortunately it have the same old 4.5.000191
The new one have audio shutter feature can anybody. Give me a working link for this app as all downloads fails with an error. Sorry correction. Updated the camera app with package installer for Android 12. Everything is cool now. PS: the Dev must update to this camera version