The page you linked only shows those logos in a block that specifically talks about Copilot, not Copilot X, so I don't see how this implies that Copilot X will

The page you linked only shows those logos in a block that specifically talks about Copilot, not Copilot X, so I don't see how this implies that Copilot X will come to those platforms as well. (I expect implementations for those platforms to show up eventually, I just don't think the logos on that page are evidence for that.)