How can I share my screen via Skype 5.3? The “+” menu contains only two item: adding another communication participant and changing the audio and video settings. Nothing about screen sharing. Is this feature still not implemented? This would be very bad, as screen sharing is crucial for me, and Skype 4.3 will stop working in 3 days.
"Skype for Linux Beta currently lacks the support for group video calling and outgoing screen sharing. We are working hard to add these features for you as soon as possible."
Teamviewer is a good screen sharing app IME but has had security issues. AnyDesk is recommended on alternativeto.net.
https://appear.in/ now being replaced by https://whereby.com/ works for me on linux (fedora) in firefox, opera and google-chrome. It includes screen sharing, and in my experience is simpler and more effective than skypeforlinux. It uses peer to peer connections. I can't comment on security. It's free for basic use, but more facilities are available to subscribers who pay. I've used only the free service, including giving remote lectures with questions from the audience.