We set up a jitsy-meet server for those cases when the customer does not have teams or teams decides to not work. Jitsi does work flawlessly for us in Chrome, Firefox and Edge. I set up a private server for friends, too, to keep in contact with their family. Jitsi is a fine tool, especially with headsets (wtf, use a headset, dad!) , the main bottleneck seems to be the clients ISP downstream and the dedicated apps on tablets seem to get out of sync.