All their chips have a Secure Enclave, so yes. That doesn't mean Linux won't be able to run, it just means Linux won't be able to use any of the Secure Enclave's secrets.
Macs presently also have a TPM, but it doesn't lock the device down to the same extent. That's the bit I'm interested in seeing if carries over.
They're bragging about Rise of the Tomb Raider's performance under Metal, a 2015 game, at medium settings.
Still bikeshedding, but there were some interesting things.