Publishing Pages have a property called Hide physical URLs from search. In the many different SharePoint Online environments I help manage can see that some pages have this set to true, some false. I don't know why this is, but I'm pretty sure no one has been changing these manually. This property is also a problem, since SP Search often does not pick up pages if this is set to true.
What determines "Hide physical URLs from search"? Why is it seemingly random or changing?
Why does SP Search sometimes not pick up some pages where this is true?