v1d30.net offers a video streaming specially for education and conferences with privacy in mind.
I am co-founder of v1d30 (read as "video"). Your own meeting or online congress now safe and easy! Ideal for education and for teams working together online. We use the open source software tools BigBlueButton and Jitsi Meet on our own servers.
BigBlueButton is a powerful platform with which you can collaborate safely online. It is very suitable for giving online meetings and collaborating online. For example, you can divide your participants over a number of so-called breakout rooms so that you can collaborate more efficiently or organise a conference. The participants don't need to download software, a modern browser is sufficient.
Jitsi Meet is a collection of free and open-source multiplatform voice, video conferencing and instant messaging applications for the web platform, Windows, Linux, macOS, iOS and Android. The participants don't need to download software, a modern browser is sufficient.