They all have access to it. The Dual Pixels and the Phase Detect are becoming an outdated technology, as everything shifts toward the AI, as Sony calls it, or Deep Learning, as Canon does. This is all algorithm that recognizes a face and/or eye and instantly focuses on the subject (animals included, btw).... I still think only sony and canon have access to the latest AF because they make it and then sell the older tech to thier rivals...
PS. That BFD AF that Panasonic has been using ought to be struck from the conversation entirely.