Recently released a major update
Your account is 28 days old. Your game 21. You have over 400 followers. People would ask you how to get popular.
In that short a time frame I doubt that an update would get you into recent again. After selecting a tag or two (adult does not count here) you are still, and will be for a while, high in recent. Your game is #6 in sandbox+dating sim.
When you switch from popular to new&popular, you will notice, that there is the same counter displayed. Conclusion: new&popular is just regular popular with an undisclosed ranking adjustment.
The rankings are weighted and adjusted in many such rankings. Jams have this a lot. Or top-rated.