Microsoft 365 “Apps for Business” is not compatible with cloud computers
Microsoft 365 Apps for Business can work on a Windows Server, but with major limitations, and often it's not supported for multi-user environments.
Should I use Apps for Business on my cloud computer?
No, Microsoft 365 Apps for Business is not licensed or supported for use in multi-user Windows Server environments.
What can you use instead?
To install Microsoft 365 apps (Word, Excel, Outlook, etc.) in a multi-user server environment, the most popular alternative is Microsoft “365 Apps for Enterprise”.
This version does support installation on Windows Server with shared computer activation (SCA).
It's designed for multi-user access, like your cloud computer.
What should you do?
Upgrade your licensing to:
Microsoft 365 Apps for Enterprise, or Business Professional, E3 or E5 (see details and links here)