Ahhhhh... I get it.. Thank youSupposed to be is probably the wrong question, because you can extract trichomes either fresh green and frozen, or dried first. It is more of a preference and choice than a rule.
Fresh frozen delivers more entourage terpenes than dried, as some of them are mono and sesquiterpene alcohols, ethers, ketones, and aldehydes, which are lighter than the diterpene cannabinoids, and exit with the water.