They are available via the bell icon - in the resulting popover, if you click on an individual notification, or click the arrow on the top right, you will go to the full notification feed page (/feed), which is equivalent to /web/newsfeed/
You can, though what about the analytics in particular makes you think that? The number of visits to /web/newsfeed/? I can imagine other reasons why that might be happening, though I don’t know how representative they would be. I’d also suggest checking against the new page (/feed)