It isn't possible to activate desktop fonts on other operating systems, as the Creative Cloud desktop application is not available for those platforms.
Web fonts hosted by Adobe work in all browsers which support web fonts on macOS, Windows, and Chrome OS, as well as most mobile browsers; read more about web font browser and OS support.
In order to activate fonts, you have to be signed in to the Creative Cloud desktop application with a named-user Creative Cloud subscription. It isn't possible to activate fonts with a device or site-wide Creative Cloud license.
The complete library of fonts for web and desktop use is included with:
The basic library, which includes a selection of fonts for web and desktop use, is included with:
If your subscription doesn’t include the fonts that you need, you may be able to switch to a Creative Cloud plan that includes the complete library to have access to a wider selection of fonts.