Ah yes, hardware-accelerated FDE 🤔
https://infosec.exchange/@alexandreborges/115766847703175693
@bruienne Welcome to 2017 (or earlier?) I say!
@wklj @bruienne you had an XTS-capable AES offload engine in your NVMe controller in 2017?
Volume encryption with FileVault in macOS

In Mac OS X 10.3 or later, Mac computers provide FileVault, a built-in encryption capability to secure all data at rest.

Apple Support