Yes the developer sees it, and also the data brokers they sell all their user data to see it, aggregate it, and corollate it. Not to mention whatever Microsoft does with it.
This has already been happening on the Web for quite some time. For example Microsoft Clarity records everything you do on those dodgy Web sites you visit. And they assign a universal identifier to you that can be correlated with the IDs Google and your device have already created and broadcast to profile you.
And you think “oh but I use x, y, and z to prevent tracking”. Guess what: They make your browser do nonsense tasks in the background to benchmark your hardware and then assign a UUID to you based on that.
The only thing that can help this situation is privacy legislation with real teeth.
Obama? Get real. Obama is, and always has been, Hunter Biden’s puppet. You want proof? Hunter had a laptop. Why would anyone other than a criminal mastermind who secretly rules the world own a laptop?
Yet that’s several times the rate in comparably sized areas in Europe.