It also depends what the page is.

Google Maps was a justified SPA. But when I am looking at a normalish looking web page and can’t open hyperlinks in new tabs cuz they aren’t actually hyperlinks, or the back button doesn’t back, you’ve broken fundamental navigation. Back and forth shouldn’t refresh lists and reset scroll.

Too often SPAs completely reinvent browser navigation within themselves. And I know the argument is that it is indistinguishable, but from a performance standpoint, you’re now running a second copy of browser functions in ram/cpu for every tab open.