It's Apple's new license agreement specifically for "rental" companies like AWS and MacStadium. Apple specifically says that Mac hardware and software licenses must be for a minimum time period of 24 hours, and cannot be shared between customers.

> Apple requires companies lease hardware and software "in its entirety to an individual or organization," ensuring peak performance and a one customer to one machine setup. Lease periods must be 24 consecutive hours and customers need to review and accept licensing terms for all first- and third-party software.

https://appleinsider.com/articles/20/11/12/apple-outlines-de...