Scrum is the most popular project management methodology in the world with over 72% of teams using Scrum or a scrum-hybrid. Chances are good that if you work in web development you are using Scrum in some form. A current trend in Scrum is the “Sprint 0” or its more artsy cousin the “Design Sprint”. Much has been written about whether these are true sprints (they are not) but less has been said about why they exist in the first place, why they so stubbornly stick around, and what alternatives exist.

https://www.smashingmagazine.com/2019/12/beyond-sprint-alternative-integrating-teams/