ok, airplay I guess - although I've never used it, I do see people using it to good effect.
Worth mentioning that airplay is just userland software - nothing special, and no reason it couldn't have been added to SL.
I don't know about multi display, though - I've been under the impression that that is broken in new and fascinating ways with every single release...
Re:Apple’s declining software quality
by spronkey on Saturday February 06, 2016 @06:20PM
(#11050512)
Yeah absolutely. Snow Leopard's multi-display was great. As was Leopard's, Tiger's, and Panther's.
Then Apple broke it massively in Lion, and only finally resolved most of the (severe, productivity-destroying) issues with Mavericks.
I'm a Safari user (better battery usage for the # of tabs I have open) and it too has improved with El Capitan though that's irrelevant for Chrome/FF users.