You moved "delete" option in bookmarks to submenu? ?
"delete" is far most used option. #1 - why to hide it, make harder to access? ?
#2 is "rename". Personally I dont mind "cut, copy, paste" in submenu, although honestly dont see purpose of those Triangle submenus
// also missing (from older versions of MX) direct access to 'bookmark all tabs" when right clicking on the tab.