Don’t go off of height. Count the nodes (where the stem of the plant, this is how I started tracking growth of different height plants. For the most part my super short plant kept pace with overall nodes it created. It was a bit hard to count yours, but they seem to be within 1-2 nodes of eachother, the one plant just looks like it branched out a bit more. But at the end of the day, both look healthy so maybe just lst or top the taller one to let the other catchup.