The PS4 has a button in the controller that let’s you take screenshots and videos without needing a DVR. Can you do the same thing with the Switch?
On the left joycon there is a square button on the bottom left of the controller. Pretty much the same location as the home button on the right joycon. Press this once to take a normal screenshot. You can then hold the button down in order to take a video recording. This will work the same as taking screenshots on the PS4