I installed LineageOS on my Samsung device, and there doesn’t seem to be a radio app. I have access to an identical device which is running the stock OS. I extracted the radio app on the other device (with App Manager) but cannot install it (unavailable shared library com.samsung.device). (Galaxy A21s, Exynos.) How can I listen to the radio on this device?
My phone does have a headphone jack, and I could listen to the radio on the stock ROM using the workaround you mentioned.