I opened 4 terminals, 3 are visible, the other is minimized.
I want to restore the minimized window, i.e. have the 4 windows visible.
I click the terminal icon, it shows 4 previews. Which preview should I click to restore the minimized window?
Anyway, my goal is to restore the minimized window. If there are better ways, please tell me.
One possible solution is to use the GNOME shell extension Window List. It displays a list of windows at the bottom of the screen and also greys out minimised windows.
For example in the screenshot below there are four Nautilus windows open, with first two being minimised.
(note that it also puts square brackets around the minimised window title)
Refer to this for installing and managing GNOME extensions: How do I install and manage GNOME Shell extensions?
As you can clearly see, the bottom right terminal window is the one in use. Just click on the left one and it will be displayed at the same size alongside the current one.