Open Source Alternatives to MS Teams

In the presence of current wave of COVID-19, we all are forced to work-from-home and attend online group meetings. In this context, my organization is currently using MS Teams for such meetings. However, we are trying to move away to some other similar product (as we are not comfortable to give control and data to MS). So, in this effort, first we tried Zoom, but it has a limitation of 40 minutes. Then we tried Jitsi, which is good but in Jitsi, anyone of the participants can kick-out any other (which is a serious problem). Therefore, we are still looking for an Open Source alternative to MS Teams at least following functionalities: > 1. Confrence Call > 2. Screen Sharing > 3. Only Admin can kick out any member If you happen to know any software with these features, kindly let me know. Thanks.