The cmd + ` is limited to switching with the same application. However, another command, "Move focus to active or next window", by default bound to `Ctrl + F4`,

The cmd + ` is limited to switching with the same application. However, another command, "Move focus to active or next window", by default bound to `Ctrl + F4`, cycles through all applications on the active workspace, which I have started to use extensively. Took me some time to find it out.