Incognito mode - how to determine the OS?

Question

Google Chrome

Is it possible to determine in any way the operating system of a user visiting the site in incognito mode?

Answer 1

I decided to test it, I went using Chrome incognito to 2ip.ru and to the site that shows the useragent. All were correctly identified.
Maybe I didn't quite understand the question?

Answer 2

Well, "real passans" will probably offer something like - xscanner or NMAP on the "victim's" IP. :)
But no. it is forbidden.

Answer 3

Incognito does not hide the user agent. It can be determined from it.

Answer 4

Incognito does not save bookmarks and the like. But it also works with headers)