[jiriro]

With the icloud private relay they say nobody can see both my IP address and the websites I visit. [1]

  - Your IP address is visible to your network provider and to the first relay, which is operated by Apple. Your DNS records are encrypted, so neither party can see the address of the website you’re trying to visit.  

  - The second relay, which is operated by a third-party content provider, generates a temporary IP address, decrypts the name of the website you requested, and connects you to the site.

I wonder whether this disables the surveillance by the wifi companies like Plume.

[1] https://support.apple.com/en-us/102602