Thanks a bunch for patiently explaining all these tricky details over and over again! It’s a real bummer that Google couldn’t (for once) come up with something more straightforward. There’s so much context and nuance that’s needed to understand it, and it kinda takes away from the overall value.
Unfortunately something just are complicated. Especially in webperf. Page groupings are an attempt summarise data beyond just "origin-level" when CrUX can't show individual page-level data for all pages. When it works it's great, but sometimes (often?) it can be more confusing than helpful...
And of course when you've more than one set of data, then that naturally leads to questions (in large part because it's not as simple as one set of data leads you to believe!). "A man with a watch knows what time it is. A man with two watches is never sure." en.wikipedia.org/wiki/Segal%2...