1 pointalso: OBS would let you capture the window and crop it and resize the output, so you could record in window-mode if that's easier.
1 pointOBS Studio, by far the best I've ever used. Pro streamers use it. https://obsproject.com/ It's a little hard to set up in some ways (watch some youtube videos to learn how to use it), but it works well, and you can do a lot of stuff with it However, it isn't useful for editing and stitching multple videos together. It's for live capture/streaming.