I have a strange problem. When I use Webex with the microphoen turned on, the audio quality gets poor. If the talking person's voice is low, words get dropped. It feels that there's a filter that filters out low volume words. If I turn-off the microphone in mute mode, I can hear all voices clearly. This happens to two phones (one is the original purchase and the 2nd is warranty replacement). I will keep swapping phones until this is fixed. Samsung needs to fix this. Webex works fine with Pixel or iPad without such issues.
I don't know that I would conclude this is a Samsung issue. A brief google search confirms all sorts of issues with the WebEx Android app. And WebEx support lists the phones that have been tested and optimized with the Andoird app - these include the Samsung Galaxy S series and Pixel phones. Notably, the A series is not listed:
Well, I'm pretty sure it's Samsung DSP. I doubt webex would have different audio processing for different android phones. Pixel works. Samsung has tons of audio DSP built in which interferes with webex audio processing.
I have problems with audio quality for two phones in a row during webex. In mute mode, all the voices can be clearly heard. However, when I unmute myself, Other people's words are dropped if their volume is slightly lower. There seems to be a filter effect that chops voices below certain volume level.