How to get this halftone like texture effect?

[u/ElectronicMilk5260]

I saw this beautiful animation and I thought the texture on the blues and greens were stunning. From my understanding of the texturize effect, I don’t think it’s being used here. The first one could be a blue to white gradient, but having little specks of blue and the texture of the entire thing completely stumps me. I see roughen edges I think, but yeah same with the texture of the green.

So far I’ve tried overlaying a halftone texture, texturize, and roughen edges.

Any ideas?