Double Tab to return to previous app

It would be nice to have a feature where we double tap the home button and it takes I was back to the previous application we were on for example if I’m on YouTube and I want to change the brightness then we’ll go to settings and then I will double tap or press the home button twice and take me back to YouTube. Or if I’m on my HDMI input and I want to change the image or something with settings I can also double press the home button to take me back to HDMI and vice versa.

I agree on this. Some kind of a way to multitask instead of always going back to the home screen to do things.