Arrange strip
Middle-click keeps the hover strip open
A middle-click on a taskbar button opens a new window, as in Windows. The strip now stays open, and the card of the new window fades in.
Middle-click on a card closes the window
A middle-click on a card closes that window, like in the taskbar popup of Windows. The app can still ask you to save first. The card fades out when the window is gone.
The strip opened with Win+Alt+A still closes on a middle-click on the taskbar. This is a known limit.
New look for stand-in cards
Stand-in cards show windows from other monitors in the main column. They are now a narrow strip with an arrow, the monitor letter, the title written upward, and the number. The picture now has the full height.