I think mistercheph is right to be concerned. This bill applies to all "operating system providers", defined thusly:
(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.
Regarding penalities:
1798.503. (a) A person that violates this title shall be subject to an injunction and liable for a civil penalty of not more than two thousand five hundred dollars ($2,500) per affected child for each negligent violation or not more than seven thousand five hundred dollars ($7,500) per affected child for each intentional violation, which shall be assessed and recovered only in a civil action brought in the name of the people of the State of California by the Attorney General.
Not really.
>...for the purpose of providing a signal regarding the user’s age bracket to applications available in a covered application store.
So the OS has to provide an age signal to apps from a "covered application store" defined as:
e) (1) “Covered application store” means a publicly available internet website, software application, online service, or platform that distributes and facilitates the download of applications from third-party developers to users of a computer, a mobile device, or any other general purpose computing that can access a covered application store or can download an application.
(2) “Covered application store” does not mean an online service or platform that distributes extensions, plug-ins, add-ons, or other software applications that run exclusively within a separate host application.
So things like Windows, Android and iOS...