Topologically, all wiring must be done in a tree style, never a loop or triangle.
You can wire this in a string or a Y, never a triangle.
For instance it's OK to have the supply at the left side of the Y, the appliance at the right side of the Y, and the switch at the bottom. In that case, ground and neutral go across the top two branches of the Y, ground and the two always-hots goes down the left two branches of the Y, and the two switched-hots go up the right two branches.
And this bottom branch is tricky because all 4 conductors must be in the same cable or conduit, and they don't make 4-wire + ground cable in large sizes, so it would need to be conduit.
If you put a clamp ammeter around the clump of wires anywhere on the Y, it would read 0 amps, because the current flows in all the wires would cancel each other out. This means no EMF emissions and no eddy-current heating of anything metal nearby.
When current goes in a loop (the bad thing), the center of the loop becomes the core of a transformer (which is not laminated to prevent eddy currents), and unpredictable things happen, including energy loss, heating of components and disturbing people who are EMF-sensitive. It's kicking up a Rather Big magnetic field, so it's not surprising to me if some people can feel it.