Hello Team,
In Dynamics 365 (Power Platform admin center), there is the option to convert a Production environment to a Sandbox environment.
Once the Production environment is converted, there is the possibility to perform a copy from another environment into the Production environment (with the temporary type = Sandbox).
Then, we can convert the environment to Production again.

Can we have the same functionality to Business Central environments?

Documentation:
https://docs.microsoft.com/en-us/power-platform/admin/copy-environment
https://docs.microsoft.com/en-us/power-platform/admin/switch-environment