It alows for a user to group a group of tabs in a window. Then after which a user could open another workspace with different tabs. The feature saves tabs.
However I don't know if adding this feature is going too far from safari. A user opens Orion, and presses a button. That opens a small window with a list of workspaces. When they press a workspace, that opens a new window with the tabs that they left off in the workspace. Then they click the workspace button, and press another workspace. That closes the window, saving the tabs and opens another workspace that has tabs saved on that workspace. The google extension "Workona" does that well, or microsoft edge beta has that feature working well.