https://gtm4wp.com/use-special-3rd-party-data-in-google-tag-manager/operating-system-attributes-in-the-data-layer
Operating system attributes in the data layer - Google Tag Manager for WordPress
Jul 21, 2023 - This feature uses the bundled WhichBrowser library to identify some attributes of the operating system that is used by your site visitor. Please make sure you...
operating system attributesthe data layergoogle tag manager