One of the new features I am most excited about is the ability to attach free stock images to the post. It took me a while to find that this is buried deep in "Other Media->Insert a stock photo". There is absolutely no way I can communicate that properly to my members and you know the saying (rephrasing/butchering it probably): "If you need to explain your user interface, you have a bad user interface".

For all years since 4.x is live I never ever looked and used this menu and I believe neither most of my members. Can the options be spread throughout the upload bar instead:

 

Yes please make this prominent!  It is a HUUUUUGE feature!