The killer feature here is that Alt + Tab is scoped to the current desktop.

Create new desktop.

Ctrl + Windows + D

Open task view.

Windows + Tab

Work within task view.

Tab Move among sections.
Left/Right Arrow Move among items in a section.
Shift + F10 Right click.
Delete Close item.
Enter Go to item

Move among desktops.

Ctrl + Windows + Left/Right Arrow

Move among the windows in the current desktop.

Alt + Tab