I'm using Ubuntu 18.04.2 LTS.
One feature I miss a lot from Windows 10 is being able to Alt+Tab then use the scroll wheel click to close multiple applications without navigating to them.
The extension middleclickclose as suggested by this answer only works for the overlay opened with Super. Personally, I never use this to navigate or select applications/windows due to the slight lag. The extension does not work with 'Switch applications' or 'Switch windows' overlays i.e. the overlay shown with Alt+Tab.
Is this doable?