Flicker is a Windows version of the popular MacOS app Magnet but much worse!
This app will sit in your system tray and wait for hotkeys to be pressed to move windows to your desired locations.
Left Windows + Left Shift + J = 1st 3rd of screen full height
Left Windows + Left Shift + K = 2nd 3rd of screen full height
Left Windows + Left Shift + L = 3rd 3rd of screen full height
Left Windows + Left Shift + T = Top left corner
Left Windows + Left Shift + U = Top right corner
Left Windows + Left Shift + G = Bottom left corner
Left Windows + Left Shift + H = Bottom right corner
Left Windows + Left Shift + Left Arrow = Left half of screen full height
Left Windows + Left Shift + Right Arrow = Right half of screen full height