@rom @avs My previous phone was RealMe C22 (IIRC). The receiver speaker was far too loud, as if it was on speakerphone permanently.
The current one is Oppo A17k(?), it's not easy to hear the caller if I don't slide the phone down a little bit so the speaker is in front of my ear (or do it like others do, sideways, LOL).
But I have yet to do something like walkie-talkie when talking back. My voice is just loud. Hhaaha.