Mac Spaces can separate active project desktops when each project has enough windows to justify a broad visual boundary. Create a small number, move the relevant windows into each one, and keep durable files and tasks outside the desktop arrangement.
Create a Space for an active context
Open Mission Control and add a desktop from the Spaces bar. Move project windows by dragging them to the desktop thumbnail or to the screen edge. Give each Space a distinct wallpaper if that helps recognition.
Do not create a Space for every future project. Keep one for the current delivery, one for communication or reference only if needed, and one personal area. Too many unnamed desktops replace window clutter with navigation clutter.
Decide what belongs together
A Space works well when windows are used at the same time and a visual switch is enough. It is less useful when one application has windows for several projects and application assignment pulls all of them toward one desktop. In that case, project-level window identification may be more precise.
Keep the order dependable
If you navigate by position, review the Mission Control setting that automatically rearranges Spaces based on recent use. Turn it off when stable left-to-right order matters. Use Control-arrow keys, gestures, or Mission Control to move between desktops.
Spaces contain currently visible windows. Deleting a Space moves its open windows elsewhere; it does not archive the project. Save files, links, and decisions in their durable locations. Wallo may complement Spaces by naming goals and grouping current windows, but it does not create or move macOS Spaces.