An entire class of government (defense) contract workers are forbidden by federal law from using could/web-based services for national security reasons.
Offline, air-gapped systems are required.
As I am one of them, along with tens-of-thousands (if not far more) others, that would necessitate abandoning the use of these products.
The vast majority of products and services that are consumed by the DoD are made by independent contractors, and not large corporations.
If this is the pending policy, it will aggressively harm small businesses in the US.