I’d draw the center line with various tools like Line, 2-point arc, and maybe FredoSpline and then use it as a path for Follow Me.
I use pipe along path; this might help.
yeah, that’s how I’ve made all my cables until now.
The Bezier Curve tool works too
With vertex tools you can extrude a single vertex and move it on the X,Y and Z axis as you will, I’d do it that way, then weld the edges and use lines to tubes or follow me to give it a width.