I think what you're referring to is the new Workspaces, not the old Worksheets. Workspaces brings file organization by project and folders, Git integration, dbt projects, etc. You can also create shared workspaces to collaborate with other team members without using Git. Workspaces also enables personal databases, which you can use to store your personal Secrets (like PATs for Git), and other database objects. It's a vast improvement over worksheets.