In MSFS sim update 5 (SU5), the white triangle of the menu bar on top of the screen doesn’t hide itself as it did in the past when you move away the mouse from it.
Maybe a bug and probably will be fixed in future updates.
I remember there is a command or a key or something that can hide it but I don’t remember what it exactly is.
However, I do remember there is an addon I downloaded a few months ago that can hide the menu bar. It’s called No Handle Bar from ither.
I didn’t use it then. Now a good temporarily fix or maybe for good.

The objective of the utility is straightforward and requires no learning curve. And it has virtually no limit to the number of cameras to be added. Moreover, the original camera will be backed up prior to its adding to the utility, too.
to the Main Menu on its first run. If there wasn’t a note about the World Update V in the MarketPlace, I would have missed it in the first place.