To be clear, as @Alex T⚜️ mentioned, Jistsi is still free and open source. What we are talking about is the free Jitsi Meet server that they used to provide. It still takes resources to offer it though, so it's only fair that they pulled it. We are considering a few options and likely would offer a Jitsi server, but we would not be able to offer it for free either. Bundles with a cloud subscription or a Pro plan, perhaps, but not free. It will have to be metered as well. If you're running your own server, you can install it on-prem anytime.