How to shift between two same windows using keyboard keys in Ubuntu [closed]

I have opened Chrome browser in Ubuntu: a normal window and an incognito window.
I want to shift from normal window to incognito window. I have tried Alt+Tab but it shifts to new windows(i.e. from Chrome browser to File Manager).

Ctrl+Tab is used for shifting between tabs in current window(i.e. tabs in Chrome Normal window)

Please do let me know if there is any shortkey for it.

Answer

Finally I found the short key to switch between different windows of same application.

• Use Alt + F6 to switch.
• We also can use Ctrl + Alt, downward arrow and left or right keys

But I do prefer Alt + F6