Theissen/Voronoi Polygons/Delaunay Triangulation

I've managed to find and implement several different approaches to these cellular like shapes but in my opinion they all share the same issue: they each draw a line between a pair of x and y coords. While visually the returned shapes are indeed polygons us Processing/P5 sketch writers know that they are not discrete shapes. Is there a method of solving a Delaunay map which returns valid shapes with vertexes in place of x,y line values?

There's an excellent write-up about the implementation here:
https://www.redblobgames.com/x/2022-voronoi-maps-tutorial/