You can download the Creative Cloud Desktop Application installer directly from here, however, as already stated your Mac's operating system to too old to run but only a few applications you might find available to install after installing the Adobe Creative Cloud Desktop Application, like Ptoshop 22.2, Dreamweaver and a few others.
https://helpx.adobe.com/download-install/apps/download-install-apps/creative-cloud-apps/download-creative-cloud-desktop-app-using-direct-links.html
If you don't have any 32 bit applications that you need to run, you could update your MacBook Air to macOS Monterey 12.7.6, which will let you run a few more Adobe applications, but not all of them.
https://support.apple.com/en-mo/103260
https://support.apple.com/en-us/102662
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