I think there might be a confusion between two independent swipe gesture functionalities.
Swiping on Home Screen / App Grid / open App window:
Works as @jovirkku has described above.
But that is actually completely unrelated to what the bug report is referring to
Swiping on Lock Screen:
Note: This will work with or without a lock code being enabled
When your phone’s screen is turned off, by hitting the power button you’re taken to the lock screen.
Here, you can ‘take a turn’: Swiping left should take you to events view, swiping right to the home screen. If you have a PIN code enabled, you’ll have to enter that first - the screen appears for both directions after the swipe. But having a PIN code or not doesn’t change the outcome of you ‘turning’ left or right.