Interesting thanks for sharing. I can see how that makes sense for switching apps but imho for switching windows of the same app that benefit is negated since the thumbnail (without intense scrutiny) is generally too similar between windows of the same app.

(As a dev, I often have a dozen browser windows and a dozen or more terminals open, half a dozen IDEs, etc so being able to switch directly between instances if the same app, esp automatically filtering out minimized ones, is much faster than alt-tabbing through then all interleaved, and was my motivation for writing this.)