@glyph @josh0 Disabling Siri doesn't disable Apple Intelligence. For example, Image Playgrounds functions on OS 27 with Siri disabled, whereas on OS 26 it doesn't since I have Apple Intelligence disabled. Instead, we have to use Screen Time's Content & Privacy restrictions.

https://support.apple.com/guide/mac-help/block-access-to-apple-intelligence-features-mchlb2e44f94/26/mac/26