Hello, this is Emily.
Yes you can. First, make sure you go to Settings > System > Multitasking, and have Snap Windows toggle turned on.
Once on, you can use Windows Key + Up key to move your current active Windows to upper half, then when you release the keys, it will ask you to choose a window to go to the bottom half. Vice versa, you can also do Windows + Down key to occupy the bottom half first. Similiarily, you can use Windows + left and Windows + right to do the left and right halves.
I hope that's what you were looking for.