Here’s the website for the app I’m using. https://rectangleapp.com
It uses keyboard/mouse shortcuts to move program windows to set points on the screen(s). I use it on my studio machine at home to move stuff around to various monitors that I’m using, or in the case of my ultra widescreen monitor, to one half of the monitor.
There are all sorts of shortcuts for moving/resizing windows vs dragging the screen and manually resizing it to fit the space.