I’ve spent a good chunk of my time building responsive, animation-heavy dashboards, and honestly, using transform: translateX() has been a game-changer. In the context of css transform position, it keeps the element in the same layout flow and offloads animation work to the GPU. The difference is super noticeable, animations run way smoother, especially on low-end devices. On the other hand, using left caused reflow issues every time elements moved. If performance matters, transform is definitely the better route.