I’m wondering if that’s possible with any desktop environment. Basically I want windows with translucent backgrounds with blurring like shown in this post; except that it always shows the wallpaper right behind the window, even if there are windows between it and the desktop. Normally with blurred background setups like that one, a window will blur the content of whatever windows are behind / beneath it.
That used to be how translucent terminals did it “back in the day” because it’s a lot cheaper to calculate…
It would be the terminal that does this, not a generic solution. I didn’t know if any specifically that does this though.