As a general remark: The buttons are placed above the text:

I believe the more common placement text next to the buttons:

This would also have the advantage of keeping the height smaller.

I'm not blocking, but we should be clear what the desired result is and we're not accidentally moving into an unwanted direction.

I assume the reason for implementing it that way was that it was easier to implement. The latter requires accounting for the text width before placing the markers, while the former just places them equidistantly.

You could still place equidistantly with text right of the buttons. The possible overlap issues are the same, except that you have a constant reserved space for the buttons.