BigBlueButton is an open-source video communication tool with all the required features for online training and learning including breakout rooms, whiteboards, closed captioning, polls, shared notes, and more.
DuckDuckGo Email Protection is a service within DuckDuckGo browser extension that allows you to generate @duck.com forwarding email addresses to mask your personal email address. It automatically removes trackers in the forwarded emails to protect your privacy online.
Jitsi Meet is an open-source private video conferencing software that limits the user’s digital footprint when meeting virtually. It works on most modern internet browsers and is also available as a mobile app for Android and iOS.