In the 2020 version of the Scrum Guide, the Developers as one of the accountabilities in Scrum is defined as set of people that are committed to creating any aspect of a usable increment each Sprint.
In the same version of the Scrum Guide, it is mentioned that the Scrum Team is accountable for creating a valuable, useful Increment every Sprint.
A number of people have asked me if Usable, Valuable and Useful could be used interchangeably within the context of Scrum and this is my attempt to document my understanding.