Maybe, everybody , already, knows this, have, already, discovered it. I find it useful, sometimes & others may, also. It does not exist in Edge, ONLY in Edge C. Right click on any (web)page and this ⬇ menu avails itself to you. (although, certainly, the K/B shortcuts can be used instead & without it)
NB: The exact content of this menu can vary some depending on the particular page, but Rt Clk will give a (similar) menu OR different items will be faded depending on whether they apply to a particular page, you will have a menu via Rt Clk; a menu Edge does not show. Rt Clk in Edge, won't see it, don't have it. It's an Edge C thing, it seems.
I am very keen on adding a start button (homepage) to this menu, it will be useful for people with a touch screen, so that they will not have to close and open the full screen every time. If it was this function in this menu, it would allow to quickly call a page with a text field.
Whilst that may be a great idea/suggestion... the or a Homepage 'button' (icon) can be put on the browser toolbar. Never mind any other time, this handy when in reading view as one can use it to go back to the Home page (where the article came from) rather than, back to the article one just read.