While this has been going on for a while, there are new changes to Sur/hardware.
A Mac sends out information including ip address (location, ISP), computer, and application hash identifying each application opened. Even prevents block by VPN/firewall in some models.
This might not sound like a big deal, but it is sent out in clear text. Apple has made engineering changes in Sur, to prevent modification. All done under the “security of applications” reasoning. However this can be used to build profiles on users.
The move to Arm chips might be hinting at more changes (similar to protections against modification of iPhone).
Read more details at the original posting here: