Since this feature has worked, at version 132.0.5905.19, this feature works in one way only: if you at middle of a page, do a click on tab will get you at the top of the page, but if you click again, will not get at the middle of the page.
"Close tabs to the right"
This is happen even when you try to close tabs in the right hand of the current tab, being part of the same tab island. Seems very unstable ...