I feel like that's not how you measure a game engine usage, the large majority probably don't install Godot via Steam, just looking at the numbers it's a very small sample which might not represent game devs in general
Does godot support 3D? If so does it support PBR materials? Does it support installing 3rd party plugins like HAVOK?
Literately the only things i need.
While the numbers themselves are just a small fraction of actual usage (as I guess most people using it don't do it thru steam), it doubled in about a week.
What would be an "educated" guess of steam/non-steam users ratio? 1:50? 1:100?