Using iPad Air, 4th Gen, I seem unable to use the bottom of the screen, roughly a finger-width or so.

On "long" pages, when scrolling down the URL bar and the bar of open tabs will get auto hidden. Tapping at the top of the screen will make them reappear. All well and good. However, tapping the bottom of the screen has the same effect. This makes any link or button on the bottom of the screen impossible to use (e.g,. upvote or downvote the last comment in a long thread, or trying to expand an auto-collapsed comment).

I don't get the same effect in Chrome, so I think this is a Brave thing rather than an iPad thing. Is there some setting that controls this behavior?