macOS Cmd-Tab doesn't work well with Spaces. When an app has windows on several Spaces, Cmd-Tab treats them as one app, so it's hard to get to the right window.
Debut is a replacement that shows only the windows on the current Space. With switchers per-space stacked in one view, you can also add/remove/reorder Spaces and move windows between them.
Debut is a replacement that shows only the windows on the current Space. With switchers per-space stacked in one view, you can also add/remove/reorder Spaces and move windows between them.