I work on both a 2D Game (
Paradise Lust, which just finished) and a 3D Game (
Love of Magic).
From what I've seen:
- On F95zone, about the same
- On Patreon, Love of Magic's slightly higher, but they're both reasonably small
- On Steam, Paradise Lust is significantly larger.
Now, that ignores a couple of things; Paradise Lust is a fulltime team, whereas Love of Magic is just me working alone. Love of Magic started slightly earlier, and was out before the Covid Crowd arrived (First release was Dec 2019).
Anyway, I wouldn't draw the conclusion that 2D is less popular than 3D. Doing 2D right takes a *lot* more effort than doing 3D well, which leads to less content / slower updates, or substantially higher costs.