This CRT effect is one of six unique looks included in the upcoming Compositor Style Toolkit, a collection of Compositor node groups created by Mica Sánchez. The pack also features styles like halftone, dithering, glitched pixelation, and more. With this project, Mica hopes to help artists explore new creative directions without wasting time building effects from scratch.
More demos are coming soon. In the meantime, check out Mica's Toon BSDF exploration and her graphic design work that blends 2D and 3D elements: