Ah this is what I missed: https://daringfireball.net/linked/2026/03/12/macbook-neo-on-...

It's not just the menu bar icon (which can definitely be spoofed), but an on screen dot where the system is controlling pixels directly bypassing any OS level drawing on the screen.

Related: https://www.reddit.com/r/iphone/comments/1in0681/iphone_16_m...