One thing I noticed is certain sites lists multiple input options with
www/firefox-esr, for instance the below ones(I used ESR version with a USB headset).
Join a WebRTC video conference powered by the Jitsi Videobridge
meet.jit.si
Mic test lets you quickly test your microphone (mic) allowing audio recording and playback. Fastest mic tester on the internet. All recordings stay on your computer so your privacy is 100% safeguarded
mic-test.com
Similar to observations of
cederom, the recent Enlightenment in ports has improved a lot and I was pleasantly surprised to see audio mixer option, this was not the case before.
As the PC has multiple devices, I had to use
sysctl hw.snd.default_unit=(device id from /dev/sndstat)
, next as the recordings were sounding feeble, so I had to use the command
mixer mic 100
to get a decent gain.
Also, if it helps anyone, I was able to use Google hangouts from both Chromium and Firefox-ESR and even
net-im/telegram-desktop. Calling to Canadian and US numbers is free from this.

Now just need Slack/Zoom working(without the Linux layer) and I can finally start using FreeBSD at work to manage "cloud".
