Thanks for the answers given so far.
I already use linux quite a bit, but have owned Macs since the first Mac 128. I would not expect, and never have expected Apple to directly provide information about every system extension OOTB. But at various times throught the years there was always a community of curious and technically savvy people who you could find with a little effort and who had taken it upn themselves to delve into the systems.
The mac is a device I own, not Apple, and upon which I rely for various activities which themselves have legitimate security requirements. It is contingent upon me to execute due diligence in investigating the manner of access and the activities occuring on the OS level that might have access to data or otherwise monitor various operations. It is a never ending series of rabbit holes, but due diligence requires appropriate, proportionate, and, typically, sustained effort.
Jurisdictional limitations on investigating these aspects of my device are matter for the courts, and are dubious primea facie. FTMP claims of infringment would be of or related to Copyright (DRM) and one which is covered by US Library of Congress' ercent rule proposals to allow circumvention of DRM controls directly and so, by implication, allow 'repair' activities that do no have to directly circumvent DRM technical 'locks'.
In the early days, and for a number of years where the distinction began to fade, Apple used Microsoft as the boogyman wrt to similar lock-in and various privacy concerns.
Just another example of lost potential.