On the iOS app, you can open your inbox by pressing this button:
Which lets you view your notifications, etc. You can press 'back' to go back, indicated by the following arrow icon on the very left:
But if you click an iOS notification from the notifications drag down, which then opens your inbox, you get the toggle:
Which feels unnatural, because it acts acts the same as the toggle you see here, which is on the main page of whichever site you're on:
I know for a fact it didn't function like this in the past (I've used the app pretty rigorously).
Is this a bug, or intended functionality?