stanislawrogasik/Pixel5-VoLTE-VoWiFi ? reverse-engineered prompt

Build me a Magisk module for Pixel 4a 5G, Pixel 5, and Pixel 5a that enables VoLTE, VoWiFi, and 5G for carriers in countries where those features are normally unsupported. I want it to feel like a simple flash and reboot fix, not a complicated manual tweak. It should not force 5G, so people can still choose LTE only if that is better for their plan or signal, and it should recover properly after weak service or a dropped connection by loading the right MBN again instead of making the user restart the phone.

Please include the available carrier MBN files and make it easy to see whether a country or provider is supported. If the normal module route does not work for someone, include the older QPST and EFS based method as a backup option in the project too. Keep it practical for real Android mod users, and look up current Magisk module packaging details online if you need to.