OK in England we have Marmite, you either love it or hate it!
Some years ago the ability to pause a maps display was introduced into ArcMap and this feature has migrated into ArcPro.
In ArcMap when you pause the display the screen goes entirely grey, a clear statement that map is not being drawn (I love it). In ArcPro you get what was displaying and the word paused at the top which blends into the background and not at all clear that it has actually paused the display (I hate it).
So my idea is, in ArcPro when one needs to pause the display, make the whole map go grey or some other colour so its totally obvious that it is paused.