Also think of it this way, when doing ( Application.Screenupdating=False ),
it does several things, it turns off everything in [Excel's] environment  to
"optimize"
the performance  execution of the underlying VBA code.
PLUS, it also delays any updates  to the screen; thus the "flickering/repainting"
and of any refreshing activities in [Excel's] environment. The same is true
for (Application.Screenupdating=True), as it does the reverse of the above.

My thinking is, anything with Application.( ? ) with only one level reference to
[Excel's] environment.
Just like ( Application.Quit ), which is one level reference and it affects all
of [Excel's] environment.

Examples of a specific events that does NOT affect the whole Excel environment,
are Worksheets("Sheet1").Activate & Worksheets("Chart1").Activate.