Exactly nothing changed last month, because it works for quite some time. See https://jgrulich.cz/2018/07/02/screen-sharing-support-in-web... and https://jgrulich.cz/2018/07/04/how-to-enable-and-use-screen-... and https://twitter.com/tomaspopela/status/1105740090784006144. Also we are currently working on some improvements to improve the UX - https://chromium-review.googlesource.com/c/chromium/src/+/19...