The new shower head’s hose dangled directly in front of the faucet knob, so I conjured a simple clamp to pull the down-going half over to the side of the stall and keep the up-going half away from the faucet:

The black nylon M6 screw goes into a hole tapped in the plastic cap atop the aluminum extrusion; I was mildly surprised that worked as well as I hoped. It’s basically invisible from outside the shower stall.
Stipulated: laser-cut 3 mm acrylic probably isn’t the right material for the job, but it’s a quick & easy way to discover if that’s the right place to clamp the hose.
While installing those two pieces, it occurred to me the result would be much stronger if the two “jaws” overlapped and had a pair of screws holding them together, so the LightBurn layout includes that idea for the next time:

The Hole Template simplified getting the hole dead center in the plastic cap, because drilling it required an awkward reach across the end of the vanity.
There is zero chance this will fit your shower & hose, but now you have the general idea.