It's pretty obvious, isn't it? It's not that Incognito Mode means "Tor Browser Mode" - obviously a connection is made between my computer, via my ISP to the target server. So yes, it's clear the target website will see my UserAgent, my Cookies, My IP Address... And if Google Analystics is used on that website, also GA can see it. It's nothing to do with Google being Evil. The same will happen if you use Firefox Incognito mode: The same data is exposed to every website you visit and therefore also to Google Analytics, to Facebook Meta-Pixel etc etc etc
