The button is more prominent, yes. And it's still useless. Most tracking now comes from the "legitimate interest" purposes that you need to actively object to, which is buried in a tertiary hidden panel or not available at all, or even forces you to object to several dozens of trackers one by one.
What are these 'legitimate interest' things, and is it even possible to object to them, legally speaking? I have never seen these I believe, unless you mean 'analytics cookies' and 'functional cookies', which I never saw hidden. I did presume that a 'reject all' included rejecting these cookies, if not it would be great to know.
While some comments are saying that legislation can narrow this down, I don't think it's anything that can be agreed up front any longer.
Web is heading toward a complete change of protocol. One that can operate between mutually hostile and untrustworthy principles. (that's what the web is now, let's face it)
What the service provider's and your "legitimate" requirements are, will have to be negotiated per transaction.
It's the end of the "uniform" web. But I think that already happened and we're long into "The Splinternet".
As I said in Digital Vegan, technology access will not be defined by the "have and the have-nots", but by the "will and the will-nots".