I think the best way to improve your footwork and movement in padel is to play a lot of matches, and analyze your performance. You can record your matches, and watch them later, or ask for feedback from your coach, your partner, or your opponents.
You can identify your strengths and weaknesses, and see what areas you need to improve. You can also watch some videos of professional padel players, and see how they move on the court. You can learn a lot from their footwork and movement, and try to emulate them.