That depends where they are in your eyes, but in short the answer is “sometimes”. If you have eye floaters that are in the vitreous / gelly of your your eye and they are due to liquification (syneresis) of the vitreous then yes, they will with time reduce. The floaters in the vitreous will disperse and gradually settle towards the lower part of the eye. As the vision is upside down and back to front in your eye the floater will move away from the centre of the vision in an upward direction.
Other eye floaters due to inflamation or bleeds do not go away at all and need urgent investigation by a MECS practitioner.