You can select the workspace or organisation you want to work in by pressing the account button with your initials in the top right of the screen (1).
Then select your personal account (My Workspace) or one of your Organisations (2).
If you hover your mouse over an organisation in the drop down menu, details about it will pop out in the black contextual information box.
You can confirm which workspace/organisation you are currently in by looking for the green check mark (3)