Personal Adobe Creative Cloud Express License on Business

Apart From Premier Rush for desktop, Creative Cloud Express is mobile and web based services. Sure, you can use at work if you want.

Premium Creative Cloud Express ($10/month).

• Creative Cloud Express app (web and mobile)
• Premiere Rush (desktop and mobile)
• Photoshop Express (mobile)
• Spark Video (mobile)
• Spark Page (mobile)
• Adobe Portfolio + 100 GB of cloud storage
• All premium templates and design assets including the entire collection of over 160 million royalty-free Adobe Stock photo collection.

https://helpx.adobe.com/express/using/express-overview.html

Creative Cloud Express is free for anyone to use, and is built on a “freemium” model. Most of the functions and much of the content is no charge to use for all of your projects, for commercial use or otherwise. 

from here:

https://prodesigntools.com/adobe-creative-cloud-express.html#:~:text=Creative%20Cloud%20Express%20is%20free,for%20commercial%20use%20or%20otherwise.

Ask your company if personal programs are allowed

Adobe does not care which computer, only that you do not try and use on more than one at a time

Cloud License allows 2 activations at a time http://www.adobe.com/legal/licenses-terms.html
-you may use on ONE computer at a time, and you may NOT share your subscription
-https://community.adobe.com/t5/download-install/on-how-many-computers-can-i-use-my-creative-cloud-subscription/td-p/11233565?cid=101&cgid=18323&page=1
-Install on a 2nd computer https://community.adobe.com/t5/Get-Started/Installing-creative-cloud-on-two-devices/td-p/6048133
-https://helpx.adobe.com/creative-cloud/help/sign-in-out-activate-apps.html
-Windows or Mac does not matter... 2 on the same operating system, or 1 on each