Putting clothes on the wrinkle release setting in the dryer is unlikely to stretch them significantly. The wrinkle release setting is designed to remove wrinkles from clothes by using a combination of steam and tumbling action. It is a gentle and short cycle that helps relax the fibers in the fabric to release wrinkles.
The process of steaming and tumbling should not cause significant stretching of the clothes, as it is not applying excessive force or heat that would alter the shape or size of the garments. However, it's essential to follow the manufacturer's instructions for the specific wrinkle release setting on your dryer and avoid overloading the machine, as excessive crowding may lead to uneven drying and potentially cause slight changes in the shape of the clothes.
If you're concerned about stretching or damaging delicate fabrics, it's always a good idea to check the care label on your clothes and consider using lower heat settings or avoiding the wrinkle release feature for those items. For more delicate garments, you may want to use a traditional iron or a handheld steamer, as these methods are even gentler on the fabric.