I have just tested it successfully with the Galaxy A52 5G (SM-A526B/DS) . Radio works (App preinstalled) with plugged headphones (which act as antenna).
No. Unfortunately, the time of replaceable batteries is long gone :-/
P.S. So you can replace it, but only with a lot of tinkering, loss of warranty and a certain risk.
It's all here: https://www.digitec.ch/de/page/samsung-lanciert-die-neue-galaxy-a52-und-a72-serie-und-du-erhaeltst-ein-paar-galaxy-buds-als-geschen-19344