I do static stretching in the morning. (Best time would be in the evening or even two times per day to get to best results.) Static stretching will stretch also joints and tendons and even nerves, not only muscle fibers.

Static stretching in decrease your muscle strength if it is done before golf. (I do not know how long is the effect, but it might be an hour?)

So active stretching - movements , maybe same moves as in golf, but slower or with bigger Resistance are more effective than stretching over 30 seconds.

But it's better to use both methods - just do not use static stretching if some part of your body is too flexible.