It is nice that you can view geometry in ArcGIS Pro.
Ditto for notebooks in your browser.
But I really hate cranking up a new featureclass when I am working on a geometry exploration, when all I want to see is what the numbers actually look like.
I stumbled on this when I was working on my npgeom package, which uses an alternate geometry constructor than is used in the arc* line of products. It also deconstructs geometry using arcpy data access cursors and/or FeatureClassToNumPyArray. (Thas is another story though)
In short, I was doing my thing and got 3 polygons objects from a featureclass.
Lines 78-80... blah blah, stuff comes out
Line 81 ... wanted to make sure they were polygon objects.... indeedy they were
Line 82, 83, 84 (right side of graphic)
cool! perfect polygons
 A multipart polygon with 2 holes in the first part and 1 in the second
 Another multipart, 3 holes in one, none in the other
 The triangle, paying homage to a simpler time when geometry deconstruction was easier
I won't go into details, but my python setup is noted at the bottom of the callout in the graphic.
More details when I explore more. Going to replicate this as a *.ipynb for use in the browser AND with Spyder as well.
Hopefully other python IDEs support these as well. Some use qt and mpl in their graphics display arsenal.
I did forget to mention that you can save the contents of the qt console in spyder to a couple of formats for posterity.
I save a little sample in the attached zip file..
unzip it to a location (eg. c:\temp
double-click on the npg_01.html file and it should load in your browser
Of course you can edit the html file to fix any stuff that you want.