You are right that operating system is not defined. But the definition of operating system provider is this: “(g) “Operating system provider” means a person or entity that develops, licenses, or controls the operating system software on a computer, mobile device, or any other general purpose computing device.” (emphasis mine)
I can’t wait for my microwave to ask me to take off my glasses, face the camera, and turn my head slowly from left to right.
You are right that operating system is not defined. But the definition of operating system provider is this: “(g) “Operating system provider” means a person or entity that develops, licenses, or controls the operating system software on a computer, mobile device, or any other general purpose computing device.” (emphasis mine)
Which should clearly exclude embedded devices.
https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260AB1043
good lord, not even the solar powered four-function calculators are safe!