Can it be true that Ubuntu 21 / Gnome, not only has no minimise window shortcut key, but it isn't even possible to set one? The keyboard shortcuts settings panel has shortcuts for zillions of obscure functions, but nothing for that most fundamental of functions.
32 Answers
I don't have a minimize window in Ubuntu 18 either. Perhaps you mean "Hide window" for which the default mapping is Super-H. However, the button in the toolbar is still called minimize.
Try Super+H (H standing for "hide").
There are lots of keyboard shortcuts to navigate the UI without a pesky mouse or touchpad getting in the way. 👍🏻
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