I'm also interested in the security features of this new CPU. Where doesn't it sit compared to Apple and ARM (Qualcomm, Titan)?

Modern processor without memory tagging for example is a little..... dated, given how much the new AIs accelerated the vulnerability discovery in all the apps and system components.

I have heard it said that security is the new power when it comes to microarchitecture. I feel like that’s something security enjoyers tell themselves to be happy.

I don't understand your comment - did you want to say that hardware security is overrated or that security and microarchitecture don't mix?

Or maybe that security doesn't have a practical application?

Or maybe just a joke, that most of the world does not care so much about security, unlike security minded people would like to?