My pothos finally decided to climb instead of trail, and I'm honestly not sure what changed

My pothos finally decided to climb instead of trail, and I'm honestly not sure what changed. I've had the same setup for two years—bright indirect light, same watering schedule—then suddenly it's sending out vines that actually want to grip the moss pole I stuck in there. Anyone else find their pothos suddenly switches from sprawling mode to climbing? Makes me wonder if there's a trigger I'm missing, or if mine just needed a few more years to mature.