I recently posted and had pages of notifications to scroll through. As I tried, the notifications changed to the second screenshot's format

when you use the surfer and the mobile app at the same time. What I could reproduce so far (at least between the mobile app 2.2.3 and the surfer 2.2.2) was that sometimes clearing the notifications on the surfer not take a quick effect on the mobile app and it shows the red notifications count incorrectly. Although the highlighted "new" notifications on both sides are still correct. It is just the red counter that stays a bit outdated (or from what you last updated on the respective app, surfer or mobile). Aside from this working all good.