Anyone got experience with it as a skype replacement? If it has IM functionality and desktop sharing with voice chat and it works remotely well then I'd love to replace skype and webex.
I used it a number of years back. It seemed to be really buggy and not work most of the time. I really hope things have improved because a FOSS solution to teleconferencing would be dandy.
My recollection is similar, with usage starting ~3.5 years ago and ending ~18 months ago. Jitsi was slow, would often crash. But it seemed to be the best video-conferencing SIP client I could find that worked on enough platforms that I could use it and also guide my family through using it.
Their WebRTC site at https://meet.jit.si/ works incredibly well. It's the best I've seen, anonymous, with tons of videoconference functionalities and nice bandwidth tracking tools.
And being WebRTC, it needs no plugins on popular desktop webbrowsers. Sadly, mobile ones do not support WebRTC. But their app is open, and works very well.
Any experience using it on Wayland Linux? I guess there it wouldn't be so easy to grab other windows content without display manager support (which AFAIK does not yet exist and if is specific for the implementation Gnome, KDE, Enlightment, ...)
AFAIK (and I can be totally wrong here) screen grabbing is part of the Wayland protocol, but most (all?) compositors restrict which processes are allowed to use that API. For Sway (which is what I use), I've seen a separate config file for this. So it might be worth taking a look at the documentation for your compositor.
Both are hosted, this is a no go. Both are also proprietary, skype has just taught us why this is a bad idea. In addition, discord is an electron app, I'm going to avoid it as long as I can.
I will answer your question anyhow assuming that you honestly don't know: Electron Apps always desguise as whatever they want to be yet they are a fat Web browser, consume insane amounts of memeory for what they do, are all to often lagging when used. They open the door for script kiddies, and as backed by javascript offer for many great opportunities for extension at the cost of homogeneity and sometimes quality