Illinois's new law requires operating system providers to add age verification by 2028 including open-source projects
(gov-pritzker-newsroom.prezly.com)
Not quite. In order to qualify for that category, the device has to require an Internet account registration to function, ie Apple ID, Microsoft account, or Google account. So Macs, Win11+ and ChromeOS qualify, but not Linux.
EDIT:
I am curious about standard Android vs De-Googled versions like GrapheneOS.