Comment 1 for bug 1645915

I'm not sure this is a bug. The option is "Always show", so it does always show. The plan is to allow launching unprivileged, "guest" apps over lock screen (think camera, taking a quick note or creating a calendar invite). So the launcher needs to be available - there is (was?) a separate option to disable launcher on the lockscreen.

Not sure if hiding the launcher on lockscreen, when you've enabled the "Always show" option, would be the right thing to do.