[css-overflow-5] clarification of scroll marker scroll position on activation when marker elements overflow

scrolltargetelement states:

When a scroll marker control is activated by explicit invocation or arrow key focus:

Let element be the scrollTargetElement of the control.

Let block be "start".

Let inline be "start".

Scroll the element into view with behavior, block, and inline.

If the activation was triggered by invocation

Follow the hyperlink updating the URL, however retain focus on the marker element.

This seems to indicate that on a user input like a arrow key press, dom-focus will be called on the scroll-marker element. On the other hand, it appears that scroll tracking may not foucs the relevant scroll-marker. Could this result in large jumps in the scroll marker, since dom-focus from a keypress could center the scroll marker, while scroll tracking may not?

Start with the linked CSS Overflow 5 scrolltargetelement and scroll tracking sections, then compare their activation, focus, and scrolling steps. Determine whether the specification needs clarification about marker elements that overflow and document the intended interaction and resulting scroll position.