Penalties updated in FIFA 20, making them harder to score than ever. The same penalty system has been carried over into FIFA 21, meaning that players who mastered the process last year can be masters again this year.
FIFA 19 used to have an arrow which you powered up with the shoot button, but this was replaced by a cursor in FIFA 20 which you could aim anywhere in the goal but was trickier to point than the previous arrow indicator.
At first, this can seem a little daunting, but once you get used to aiming and powering up your shots correctly, penalties will become an almost guaranteed way to score goals.