I've had my Monstera deliciosa for three years now, and I'm finally getting those characteristic fenestrations on the newer leaves

I've had my Monstera deliciosa for three years now, and I'm finally getting those characteristic fenestrations on the newer leaves. I think the turning point was moving it closer to the east-facing window—it seems the plant really does need that bright, indirect light to develop the splits properly. I'm curious whether anyone else has noticed a difference in fenestration patterns based on light conditions, or if it's purely a maturity thing for them?