When I scroll the left menu and click on a link, the new page gets loaded but the menu doesn't focus on the item I picked. This is a bit bothering for the users if they want to pick a page from another subsection. They have to go and search to main menu again and expand the fields.

when you click a link, the menu is not expanded or scrolled down to where the page is located

say compared to https://docs.okd.io/4.13/rest_api/understanding-api-support-tiers.html where clicking an item in the menu also reloads the menu but retargets and expand the current page in the menu (just as an example)