Storyboarding is an important part of the design process! It’s a great way to create empathy with the user and to pitch ideas to the team/stakeholders. I’ve also found that the process of creating one can bring up important scenarios & use cases I’ve overlooked. Normally hand drawn sketches are good enough.
Here’s a glimpse at a very high fidelity one I made for an old uni project called “Go Fish”. Illustrations courtesy of Yida Tan and myself.