"Multi-Account Containers" has improved my workflow, making me more efficient. By being able to keep my cookies and histories isolated based on activity/website, I don't have to open a private window every time I wish to look at Gmail or use a Google search service like Google Scholar. The ability to specify for a website to automatically open in a chosen container is an excellent additional touch that facilitates the process even more. Finally, it also works well in conjunction with my tab group extension ("Simple Tab Groups") -- I have been using both for several weeks with zero conflicts or other issues on either a Mac or Ubuntu 18.