PNGs and the PSD exporter are not mutually exclusive ^_^
If, for instance, I want to add a gradient to the whole pic in postwork, I’d rather work out of a PNG than out of tons of layers that I’d have to merge anyway.
Now ofc, such a project would most prolly use layers on top of that but that’s another issue ^_^
Had a look at your games.
Good luck with your ventures!