Reliable automatic reconnection to cellular network

Hello All -

I’m struggling to find a way to get a very reliable and automatic cellular connection on my raspberry pi. I can get the hat to work - but I have to manually enter the commands. I can’t seem to get anything to work automatically when the pi reboots. and I can’t seem to get the pi to reconnect if it looses connection. why is this so difficult?

Running raspberry pi 4 or pi 5
Running 64 bit bookworm

any suggestions are helpful
in a perfect world this would just work - automatically - without having to jump through hoops

Wi-Fi on my PI works just fine - why can’t these cellular modems???