This seems like a huge privacy invasion where even with iCloud & Siri disabled and all telemetry toggles off, every URL you visit on your phone is tracked and sent to Apple. I know folks on this forum have suggested using an iPhone without iCloud & Siri could be a reasonable option, but wow, collection of every site you go to seems ridiculous.
Here is the link: https://www.scss.tcd.ie/doug.leith/apple_google.pdf
Relevant section:
"3) Although Siri is not enabled on the handset, connections are made to server smoot.apple.com by the parsecd process associated with Siri. When a URL is typed in Safari, corresponding telemetry logging the URL is sent to smoot.apple.com. Again, this occurs despite the fact that Apple telemetry is disabled in the device settings."