I understood you, that's what this does. See the quote below extracted from the link I previously posted. Note that the page it autogenerates is post-filtering and works the same way for any tag (built-in or user created). The summary screen is usually enough for me, but the full note page is nice sometimes because you can annotate it just like any other page.
"If you want to view the tag search results as a notes page, click the Create Summary Page button at the bottom of the Tags Summary task pan."
Huh, interesting. Doesn't seem to be an option on the Mac version, and I don't think there was this option the last time I tried to do it in Windows, but I'll admit that was a while ago.
"If you want to view the tag search results as a notes page, click the Create Summary Page button at the bottom of the Tags Summary task pan."