Edited: Milky trichomes with some Amber yes definitely time to flush in soil especially as someone else mentioned magnesium is a pain to leach out of the plant you shouldn’t feed anymore Calmag products or products containing high amounts of Mg at least 3 weeks prior to harvest. As a side not off topic I can see a “creamy” residue on the leaves at first I thought it could be powdery mildew but I’ve read through some of the later weeks 15,16 you where spraying a neem oil solution? Did you use a surfactant like gentle soap? Yes I agree I would be washing those buds in a H202 solution
@20c before drying, to get all that muck off the leaves. Otherwise nice looking plant well done, on to the next now. Hit me up if you are unsure on what to do, or have any questions