Mouse over is a bad interaction, except for maybe showing tooltips. You can’t do it on a phone. You’re going to create mouse tunnels (where the user accidentally mouses out and closes the menu). And yet I see them all the time.
Double click is kind of a bad interaction, too. A naive user looking at the device isn’t going to Intuit “if I push this button twice rapidly something different will happen”. There’s no double right click or double dual click. Nor is there a triple click. It never should have become a standard interaction.






I feel like there are places where double click is the only way to do a thing, but you’re probably largely correct. Apparently on the Mac you can do window->zoom to accomplish the same as double clicking on the window’s top bar. Never knew that. Also don’t think I would have naturally decided to double click on the window to change its size.