One thing is this WC, and the other the whole PR company they have in the media, as if that M. Osaka is a star like Williams. WTA, and news agencies are full of Osaka "sister act" articles, they obviously try to erase the lawsuit news.
Do you know that in Russian slang "manda" means "vagina"? I don't think that as a person of Russian descent she'd be glad to hear you call her that. https://www.urbandictionary.com/define.php?term=Manda
You sound like her PR agent. Nope. She's not. It takes a bit more to be a star. She'll be one when she'll back it up with more titles. As of today she's just a fearless teen with an impressive game, a will to win and an IW title.
I personally don't complain. WTA is much more entertaining than ATP at the moment, and I don't really watch men's tennis for that reason. But to call someone just after one tournament a star is premature. That's my point. The girl still has to prove she's here to stay.
WTA has great players right now, the management and PR are awful though. Anyway to say that someone who has won only one big tournament is a star is a bit of exaggeration. Do you still remember who won it 2 years ago without looking in the Wikipedia? We never know what will happen next.