I wouldn't read too much into that site. For instance it says my chrome browser, updated to latest version has a user-agent "similarity ratio" (whatever that means) of 0.43%. This can't possibly be true because autoupdate is enabled by default for chrome, so you'd expect everyone to have the user-agent, or at least all the windows users to have the same user-agent. For whatever reason it also thinks firefox has a 37.8% market share, which is clearly not correct. I also tested some phones, which it also claims is "unique". That clearly can't be the case either. Phones are pretty basically run the same software/hardware, and are pretty locked down from a customization/sandboxing perspective, so at the very least you'd expect most of the iPhone 15 in New York to have the same fingerprint, for instance. It certainly shouldn't single any one out as "unique".