Does Resource Hierarchy affect the logged in user Subscription Data Visibility

Summary:

Resource Hierarchy: Does the Resource hierarchy - rollup data visibility in Subscription.

As per our understanding, the Logged in user will be associated with Resource Org,

The Resource Organization is associated with some BU's. These BU's will be automatically visible for the logged-in user.

But if we have a Resource Hierarchy like the below:

Organization 1 ---- BU 1 ---- User 1

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Organization 2 ---- BU 2 ---- User 2

Does User 1 also get access to BU2 as it is under Organization 1 in the Hierarchy?

Is this the correct expectation of the system?