I maaaay have taken my phone on an accidental trip in a pool and was given an old phone to use as temporary. Has a headphone port. Saw the radio app and realized how do many of my smart phones even had radio access even though they all are capable. Bastards
I still can receive a few clearer stations without the headphones plugged in. But just barely. The app I tested on allows you to listen to radio without plugging headphones in.
You must be close to a station. I think normal fm stations are expected to work at least 40km away, but I doubt you can receive it without a good antenna at that distance.
It’s not very far but it’s also a national broadcaster with especially strong signal I think