Earlier quoted context omitted.
Apple Silicon Macs use per-file encryption tied to the credentials: https://support.apple.com/en-gb/guide/security/secf6276da8a/... Was carried over from iOS. A way to bypass it _should_ be possible, but will entail having the System volume of the volume group to have different properties than the Data part. Otherwise the OS will fail to load. (on Apple Silicon Macs, macOS is fully booted already when you input the p…
Does this mean that every user account has their own data volume or that every user account has their home folder encrypted on a per-file basis? Or neither? What is the privacy implications of two users (both with administrator accounts) sharing an Apple Silicon Mac?
Both users have access to all the data in that case. It got carried over from iOS which didn't have multi-user support.
(and this is by-design, protection granularity is the volume)