I know there are a few S4s floating around on this topic but wanted to revive.
Fortrea would greatly benefit from sequential authoring. While their case is extreme, they may sometimes have 15+ users authoring a single question or section. Even with the alternate solutions of tasks, comments, and activity monitoring, this many people causes so much confusion on who has added what and when. I'd really like to see us prioritize this for them, especially where we can currently do it in review.
Their author and review process is pretty elaborate and they lean more on section templates than a traditional Q&A pair. We're happy to chat through this with a product manager on a call to ensure the importance of this is relayed appropriately.