Yeah, I’d say page numbers have never been particularly important to how Scrivener works. The feature we added to the Mac version isn’t even that useful for what you’re talking about, it’s more a screenplay tool for judging about how long what you’re looking at is in estimated minutes.
It’s really not possible for a program like this to tell you what page you’re on, or to jump to a page that matches some external rendering, because there is no concept of that until it is compiled (which can radically alter the content) and opened in something that does page layout.
If during that transition to this new way of working you find it easier to continue depending on page numbers, periodically compiling a reference copy is probably your best bet, but I’d only use that as a transitional tool, because that’s kind of an awkward way of working.
Here is an older thread on the matter, which includes some testimony on how people use Scrivener, the kinds of tools that replace the page number based way of working, and so forth.