Not the person you asked, but I personally really dislike Jitsi for the following reasons:
* We run into so many issues screen sharing, usually it's just that the persons screen doesn't show up, but it's also often way to compressed to read
* Even just 1 on 1 it makes my laptop cry, with 5 or 6 people in a conference I have to minimize the application or I cannot use my laptop at all because of the CPU load, and at 12+ people even with the application minimized it was maxing out my 2017 Macbook Pro CPU
* For comparison, I recently was in a 230 person Zoom conference, laptop hardly noticed
* I often have audio issues and it requires restarting the application or chrome before it fixes itself
* Really the performance of it is the biggest reason I hate it, we tried having a "lounge" where people join it and just chill while working, but we stopped because once a few of us got on it our computers just became unusable
I've got probably about a half dozen data points with each, and they seem about the same to me -- my laptop (2018 Macbook Pro) heated up about the same for the 12-node Zoom conference as the 12-node Jitsi conference (neither so badly that it affected the rest of the system or made me worry about anything); people seem to have about the same rate of technical issues / bandwidth issues.
I have to reboot if I want my laptop back after a Jitsi meeting. It sends the Windows audio driver into a resource-consuming tailspin from which it does not recover. In all fairness I've had issues with the audio driver before on this laptop but that's the only application that has this particular effect.
If you avoid firefox and stick to either Chrome or the unofficial (but perfectly working) electron app I've had zero issues. Using the free service (not a self hosted instance) I've had several calls with 10-20 (all video) people and not a single hiccup.
If you are using firefox you will encounter issues
