The same app can serve several projects, so its icon is often the least useful clue. Separate same-app windows by outcome and expose a detail that survives when the windows overlap: document name, client, repository, environment, or browser-window name.
Give every window an identity clue
Use features the source application already provides. Name a Chrome window, open a distinct folder in an editor, show the repository path in a terminal title, or keep the client name in the document title. Choose a clue that can be verified inside the window, not merely a color you might reuse.
Then assign the current window to its project group. The group supplies the outcome; the title or content clue confirms the exact object.
Switch in two steps
First select the project. Then select the window and verify the clue before typing, sending, or running a command. This matters most when two windows share a generic title such as “Dashboard,” “Untitled,” or a common filename.
Command-Tab switches applications, and Command-backtick can cycle windows in the current app. Those native routes remain useful when there are only a few windows. A searchable or project-based list becomes valuable when cycling order is unpredictable or titles repeat.
Handle shared and ambiguous windows
Some windows legitimately serve more than one project, such as a calendar or shared reference. Keep them outside a project group unless one current action clearly depends on them; otherwise every group becomes noisy.
If two windows cannot be distinguished from available metadata, stop and inspect them rather than guessing. Wallo’s product principle is to refuse ambiguous targeting rather than focus the wrong window. No grouping tool should be treated as proof of account, environment, or document identity.