Comment # 4 on bug 1185040 from Chris Schaller

Firefox behaviour got pretty stable meanwhile (tumbleweed 20210504).  Could not
reproduce Alynx's bug.

However, you should be able to reproduce my issue w/o firefox or any other
window.

Close all windows so that you just have the blank openSUSE green background,
swipe up.
Now, if the mouse pointer is outside the zoomed out green area (i.e. the grey
area), another swipe up works as expected.
However, if the mouse pointer is inside the green area, you will notice that
intermediate zoom state.