Yes, it is correct to infer that humans are part of the universe. Quantum mechanics is a fundamental theory that describes the behavior of matter and energy at the smallest scales, including the particles and interactions that make up human beings. As humans are composed of atoms and subatomic particles, which are subject to the laws of quantum mechanics, it follows that humans are part of the universe governed by those laws.
The principles of quantum mechanics apply to all physical systems, including biological systems like human bodies. While the behavior of macroscopic objects, such as people or everyday objects, can often be described using classical physics, at a fundamental level, the properties and interactions of the particles that make up those objects are governed by quantum mechanics.
Therefore, humans, along with all other physical entities, are an integral part of the universe, subject to the same underlying physical laws and principles, including those of quantum mechanics.