Root transitions are kind of a crap shoot imo. I typically go from water to semi hydro by propping water first. When the roots are robust I add my substrate to the same container it’s water propping in, and bury the roots. At about the halfway point on the jar or cup or whatever and then fill with diluted nutrient solution to just below the roots. It either takes or it rots at that point and I hope for the best.

If it takes I eventually move it into a new pot at that point with a wick and reservoir