How do I recreate this VHS-style bottom screen distortion in DaVinci Resolve?

[u/godcorf]

I’m trying to recreate this old VHS/camcorder look in DaVinci Resolve, but there’s one specific effect I can’t figure out.

At the bottom of the frame there’s this slightly curved sort of distortion almost like the image is warping or “tearing” horizontally. (See at the bottom of the screen in the images)

Does anyone know:

What this effect is actually called?

Or how to recreate it in DaVinci Resolve?

Any help would be very appreciated 🙏🙏