We gave a few people early access, and the same question came back from most of them. They had accounts for work and accounts of their own, and wanted to know how to keep the two apart.
You can connect everything to one workspace and be careful. We also looked at groups, where you label an account and filter by the label. Neither draws a line anywhere except the account list.
So an account can now hold as many workspaces as you like. Each one has its own connected accounts and its own posts, and nothing crosses between them. The personal account is not one click away in the composer, because it is not in that workspace at all.
The line is worth drawing this early. Who a workspace ends up being shared with, and what we want the AI to know about the brand it is writing for, both sit inside it. A label on an account would not have held either of those.
Switch from the picker at the bottom of the sidebar.