Online radio in my experiences is laggy when lot of people listen it at the same time besides FM radio could work offline. It just needs antenna. It’s so frustrating when you are listening to hockey game and in the critical moment the radio stream lags and you miss out on what’s going on.
I’d use it but I may have answered my own question, given that fm radio needs an antenna bt headphones would probably not work that way. So getting rid of the headphone jack has made fm radio on smartphones useless.
Also this. I forgot that most phones don’t come with a headphone jack.