If your company has an enterprise account Adobe Stock may not be included in your corporate account. You would need to reach out to your account administrator or IT department to learn more about what is included in your company's account and request that they add Adobe Stock.
You could create a free personal Creative Cloud account and purchase your own Adobe Stock subscription. This would allow you to download Adobe Stock assets and use them with your corporate Creative Cloud subscription.
I will definitely ask them about Adobe Stock. That Adobe Entreprise webpage confused me because it says "Direct integration of Adobe Stock". I didn't reckon it needed a separate billing / licensing.
Anyway, since TypeKit is included, how can I add fonts to my Creative Cloud Enterprise softwares ? It asks me for an Adobe ID which I don't have ; and since my personal (home) Adobe ID is not, and cannot be, linked to my entreprise license, I'm stuck 😞
TypeKit/Fonts is not my area of expertise, but if you are signed into your company account and your account includes Creative Cloud, fonts should be included. You would need to sign in with your company Adobe ID. As in when you sign into https://fonts.adobe.com/my_fonts and when you see Personal or Company you should choose Company.