Shortcut sits deliberately between the simplicity of a board and the weight of Jira: stories, epics, iterations and roadmaps with sensible defaults, quick setup and enough flexibility for most software teams. Docs and objectives round it out without turning it into a platform.
It suits software teams that find Jira heavy but want more structure than Trello. It offers similar speed to Linear with a lighter learning curve and a bit more workflow flexibility — though Linear has the stronger ecosystem momentum.