The only place I have encountered the setting of pixel tolerance is with snapping settings (Edit tab > Snapping group > Snapping Settings). This kind-of functions the same as grabbing (snapping to) features during an edit session. Is this what you were looking for?
Is this the tolerance that would be used when clicking on a feature such as a point so the pop-up information for that feature appears? If not, where would that setting be found in Pro?
Is this the setting in Pro that determines if you've clicked close enough to a feature for the pop-up information to appear for that feature? This would mostly apply to points. I don't see this information shown in the link that you have provided.
I don't see that one any more thankfully. There was nothing more problematic when someone had the pixel tolerance set to 3 pixels and kept zooming in and missing the point within the tolerance. Distance based seems to be the unspoken default, but
Kory Kramer would be the person with the know... Kory, any clue if it still exists?
Michael, there isn't a setting that I'm aware of to control the "pop-up tolerance." Note that the Explore tool acts on a feature's symbol rather than the xy location. So the ability to "hit" a 20 pt point symbol is easier than a 4 pt points symbol.