So far as I know, the various Linuxcon conferences around the world are planned and managed by The Linux Foundation. They have many, many sponsors... and The Linux Foundation has been doing live streaming from the last few... but it usually takes a while before the final videos are released. I believe someone in the audience shot this one and posted it to YouTube.
Just when you thought we already had too many desktop environments and window managers for Linux... comes the resurgence of one from the past... Enlightenment. The Enlightenment window manager USED to be the default for GNOME way back in the day... but after it got dropped it has sort of lived in exile with hundreds of hackers continuing to code on it for another decade.
The speaker is Mike Blumenkrantz, Senior Software Engineer at Samsung Electronics and Release Manager for Enlightenment DR17. Enjoy.
If you want to download it, break out youtube-dl and do something like the following which is the 854x480 webm flavor:
youtube-dl -f 44 -t "https://www.youtube.com/watch?v=Sc_BxQa8Y40"