Similar to paper prototyping, paper-in screen prototyping displays low-fi mockups on the device itself. However, the latter will only work with some pre-defined scenarios. (i.e. the interactions of the design will not be complete)

Any suggestions or opinions about this topic please?

Similar to paper prototyping, paper-in screen prototyping displays low-fi mockups on the device itself. However, the latter will only work with some pre-defined scenarios. (i.e. the interactions of the design will not be complete)

Are paper-in screen prototypes more suitable than the paper prototypes to gather feedback during a usability test?