Hi, we tried google meet, last Monday, the video-quality and audio was very good, would highly recommend it, I suspect similar results can be achieved when using google.duo but we didn't test that. At the moment were sticking with discord, but that is only because I use sound ambience from youtube and sound effects which I can only stream through discord. Only thing with google meet is that, you only have 1hr session unless you have a special google account in which you pay for extra google storage.