There have been a number of threads about this in the forum.
The one has some ideas about cable relief. I printed the spiral one in PLA. Way too hard, couldn’t get it on the cable, Then printed it in TPU, doesn’t contain enough cable clamping and can still catch on the splitter boxes. I ended up using the existing cable clamp making sure it clamps the cable sheath plus half the TPU spiral for strain relief. I also printed a cable clip like the one used for the head cable to lift the bed cable away from the splitter boxes.
It’s definitely an area that urgently needs improvement.