Not sure about that. As my original post says, the problem is evident in exported vectors types - PDF, SVG, EPS. And I attached an SVG as proof.
And I just exported to a PDF with the "Use precise clipping" enabled and it still has the issue in the PDF - just like the SVG above. See attached.
However, in both cases, it's only evident on a circular object. As my original image says "Third example shows in export to vector formats SVG, EPS, PDF, but other two do not."
And i tried doing 300dpi PDF too.
It's quite reasonable for "Use precise clipping" to be in Performance settings but it's equally reasonable for it to also be in View Mode menu since it affects the view. Kinda of like InDesign and it's three different view quality modes.
My own opinion is if something looks like a bug but has a fix that's not easily determined by ye average user - such that one logs a forum request reporting it as a bug - then there's probably user experience issue.
My user experience was I spent well over 30 mins testing and proving this "problem" that could have been averted by better UX design. As well, I spent time googling and searching for an answer. My user experience may have been much, much better with a simple option in the View Mode. (Can't absolutely say i would have quickly found it there, but definitely more chance of it being both visible and meaningful if i saw it there)