@jojo0587 You are focusing too much in different profiles.
Workspace should be in different containers (cache and cookies differents) but the same profile (same bookmarks and stuffs of yor profile)... it is like Private Windows works without the Private part and in the same window in a different workspace.
Profiles is a whole different thing that most browser have but having 2 windows is a not ideal.
And Whatsapp was an example... it can be a news site, email, etc... any site that have login via cookies should be separetely between Workspaces to be useful.
That is how most people see Workspaces... and that is why it was a surprise when Opera released it without that feature.
Workspace School: you use your school credentials to logins on sites
Workspace Personal: you use your personal credentials to logins on sites
Workspace Work: you use your work credentials to logins on sites
All using the same profile with same bookmarks... just cookies and cache are separetelly between workspaces (just like Private Window do but without the private options enabled).
Nobody wants Workspaces with different profiles... nobody wants to have several profiles or create them.
I can't see how anybody can't see how useful is that it is how Workspace was supposed to work... it is a deal breaker feature... the Firefox thought of the right ideia with Containers but forget the organization part because it is dumb to have diferent containers per tab and Workspace fix that issue making perfect.