So just off the stand it stays up by itself? Never tried, but that would unfortunately put it several inches too low to be comfortable.
Might be worth trying though, the display itself looks great. Really wish it was a VESA mount.
Yes. The manual even shows this as an option. It was designed that way.
They make another model with the same panel that has a VESA mount. Looks the same from the front. Check their website.
There is a guy here who has the 27" version I believe that has it mounted without the stand. Scroll down the page from the following link. Looks nice.
https://forums.macrumors.com/threads/1496069/