@michallis so you might try adding 2 edgeloops from the center and spreading them out accordingely to get the right spacing of the pinch.
I did a really quick test to show you (not in any case perfect lol):



of course you can also try the “EDGE CREASE” and pinch the middle edge with +- 0.8 and the edges beside it to a lower value (0.5 +-) to fan out but its not easy to get it “smooth”.