Is there a difference between Many Worlds Interpretation and Relational QM?

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Whats the difference between Many Worlds Interpretation and Relational QM. Here is what I understand in few words:

MWI: The whole universe system evolves with Schrodinger Equation without Quantum Collapse, but when a subsystem interacts with other subsystem, it seems like Quantum Collapse.

RQM: Every measurement of a system by another system is like an interaction of the second system over the first one. So it breaks the quantum evolution and so happens quantum collapse.

These ideas seem identical to me. Do you know if there is any diference between these two approaches.

Ps: I am concerned with this two interpretation because I think I am a Many World or a Relational "fan".
 
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