I noticed some slight layout shift in my prototype animations, and found that there is some extra scrolling happening that gets reset when animating between Frames.

I found that even when scrolling is completely turned off, the Presentation mode will still scroll to the left and down a bit. My design extends to the edge of Frame, and scrolling is off, but when I scroll, these thin white bars slide into view from the bottom and right sides:

Is this a bug, or am I missing something?

Thanks!