[ Thanks to An Anonymous Reader for
this link. ]
“Removing the user control in System Settings is a mistake as no
provision or consideration is given for slower hardware or uncommon
setups such as dual monitors. Not everyone runs applications in
fullscreen either. And most significantly, not everyone wants to
run compositing on their desktop and they should be able to turn it
off (or on) if they choose. In addition, applications will have to
be patched to support this new feature and not all will, especially
older games that no longer receive updates. The new system might be
an improvement in some significant ways, but removing any user
control will cause end-users problems and leave KDE open to lots of
unintended consequences.”