I'm getting here too late for this to be visible, but fuck it.

The difference is Apple doesn't pass any information on to the website. It just tells the website whether or not it passes their integrity check. Your web environment gets the Apple stamp of approval or it doesn't, that's all the sites will know.

Googles shit is going pass actual information about the browser state, add-ons, and the device to the site so they can restrict access based on any criteria they choose. That creates endless more avenues for abuse by giving the websites the ability to judge you for themselves and micromanage how you are allowed to visit their site.

Apple's is the equivalent of a metal detector before walking into a building. It will go off but it doesn't violate your privacy or enable targeted screening by telling anyone what it detected.

Google's is the equivalent of a strip search, where it will drop your clothes and pictures of your junk onto the property managers desk so they can decide if you're worthy to enter. Maybe they don't like your brand of underwear, or a tattoo you have, and refuse to let you in.