I’d love some advice about repotting my ZZ Plant. She is a favorite and absolutely thriving. She is starting to get root bound I think. I keep seeing the roots encircling and getting tangled from the bottom, the root are at the top soil being exposed, plus, there’s a bulging out section from roots. I included it in the photo but it is likely hard to see, but incredibly easy to feel because it’s hard as a rock. I have seen many ZZ Plants have transplant shock/die after replanting and I’m terrified to lose her. How do I replant? What type of soil? I’m running to the nursery today so I can pick up whatever is needed.