In large assemblies, it is common to include one or more families of interchangable parts. It is very useful to be able to switch from one of these parts with another in the same family, for design experimentation or to create a product family.
Autodesk Inventor allows a component in an assembly to be replaced by another component, which serves this purpose very well.
Fusion 360 is sorely missing this feature, only allowing a component to be replaced by a different version of the same component. This effectiovely means it is impossible to try out a design using different parts in the same part family, and makes it far more difficult to test out different design variations, or to create product variants..