I did a check on beloved’s account (not a guide or following anyone).
Shockingly in explore London (the whole place), I have about 18 shared videos from the weeks in the top 30-40. Including 1st place.
Also when exploring Camden and Marylebone which I visited recently, I also seem to be very popular - again, almost ALL are videos. I uploaded even more photos but it is the videos that are used almost exclusively in the explore feature.
You can try and check yourself and let me know if you see differently.
I wonder if it is because I am a “heavy” local guide in London which causes the algorithm to pick me so frequently.