Slightly more decentralized online video meeting
An easy solution that does not require any usernames or passwords can lower the barrier of meeting people online. Privately. There are many commercially successful video conferencing platforms but in many articles you can find online the open alternative is not even mentioned. So I chose to not mention the others here. Just open alternatives. And when I say open, it means anyone is free to run an instance as part of their infrastructure or even use any of the available publicly-running instances.