What is the default behavior when creating a report from two queries from the same universe?

Two table blocks are not the default result - merged dimensions allow data from both queries to appear together rather than in separate blocks.

When multiple queries are built from the same universe, Web Intelligence identifies dimension objects with matching names and compatible data types and merges them automatically - this synchronizes data across blocks without manual configuration. This default merge behavior allows measures from different queries to be displayed in a single table using the shared dimension as the axis. You can disable or modify merges manually afterward if needed.

Queries from the same universe do not default to separate report tabs - that behavior is not triggered by same-universe sourcing.

This is incorrect because automatic merging is exactly what does happen by default when queries share a universe, making this the opposite of the correct behavior.