alt Hacker NewsiOS sends data to metrics.apple.com, metrics.icloud.com, iadsdk.apple.com, etc. a lot. They are much better than Samsung (who send data to Samsung and other parties), but I am not convinced they are much better than Google devices. It's more who you prefer sending your data to.
In the end something like GrapheneOS is the only good choice. Has all the security features of Pixel (which is similar to iPhone) and the tracking of neither.
Not all metrics are equal. I don't really care if Apple collects anonomized data on which features are most used or collects crash reports. That's worlds away from using preinstalled apps to backdoor your phone to provide tracking scripts your details in incognito mode.