With sub-results, Kagi displays the translate button only on hover. This is fine with a mouse, but on a touch screen the button is invisible until the headline gets pressed, leading to frequent accidental presses of the translate button by me. This is especially bad since for most (longer) headlines, the button gets shown on the right edge of the screen, which is, as a right-handed person, usually where my thumb is.
Invisible buttons shouldn't be pressable. I would suggest making the translate button always visible on mobile, which is already happening with main results, possibly stashed in the three-dots-menu to avoid clutter.