I think the workspaces are a great idea, but I miss more flexibility. The main thing that bothers me is that you can't have a separate shortcuts (in bookmarks bar) for a different workspaces. Adding that would be huge.
However, additional settings related to the workspaces can be added, such as private browsing, VPN, ad blocking,...
I hope others find this useful as well.
Thank you and keep developing this great browser,