I usually work on about 5 projects at a time. During a given day I will switch between those projects at least once an hour. With Panorama Tab Groups, I only see about 10-20 tabs at a time and they are all specific to the current project. when i switch, it does it all at once and the pages don’t reload. They retain their state. I can be editing something in one tab group, switch to another tab group to check on a dependency, and then switch back to the firs group to finish editing.

I do use bookmarks for longer term organization but my workspace is all handled in tab groups.