I see Leylah Fernandez is playing a a Fourth round match today. Maybe not winning at the US Open has been a blessing in disguise. I know that sounds strange, but she seems under less pressure (probably apart from Canadian press) than Emma Raducanu.
I don't think it would have helped Emma though if she hadn't won the USO final. She'd still have got massive media attention and would have been pressured to flourish. As it is, she knows she has won a GS, regardless of anything ahead and that takes an edge off any criticism. It is the holy grail for top players and most never manage it. Leyla may get there, but remains to be seen. She is another one who could do with telling her dad to take a back seat.