Do you have tight hamstrings? Does it seem like you have been stretching them forever without much change?
If so, then the first thing to do is assess if you actually have tight hamstrings and if they need to be stretched. You can do this by doing an active straight leg raise on the ground one leg at a time. Can you achieve 80-90 degrees without compensation?
If no, then you may need to work on your hamstring mobility by doing this hamstring mobility exercise. If you can, but still feel that your hamstrings are “tight” then this exercise may still be good for you by creating strength in your hamstrings’ range of motion, especially at the end range.
The biggest problem we see time and time again with this stretch is that people always round through their lower back. Keep your spine neutral and hinge only through your hips.
Give this stretch a shot and see if you notice a difference!