@zalex108: Thank you. I am only using Beta channel so I guess I still don't have access to workspaces. What I expect is to be able to switch between the two profiles (workspaces if that's what you call it) and have completely different set of cookies (like one site https://outlook.com where I am logged using two different identities in the two different profiles), different set of favorites, etc. Is that what workspaces support?
If not, then I would ask you to add support for proper profiles (like Chrome, the new Edge, etc.). I know you can do it by manually by cloning "C:\Users{username}\AppData\Roaming\Opera Software\Opera Next" and using --user-data-dir program argument. I hope we both agree that this is not the right way of doing it (not very user friendly).