Administrative Units - are they a possible solution in this case?

Hi, I used them to divide device management between 2 departments located in 2 countries.
Administrative Unitsin Microsoft 365 allow you to delegate management of users, groups and devices to specific administrators, limiting their access to a subset of the tenant. This could work to separate Corporate and Operations, with the following advantages and limitations:

Advantages:

Delegated and separate management by division.
One tenant, with less complexity.

Limitations:

Service configurations (e.g., SharePoint, Teams) remain central.
Not suitable for legal separation or stringent compliance requirements.

As an alternative you can create a separate tenant per Corporate that would provide complete separation (data, administration, billing), but with greater management complexity.