Effort? What effort? Putting a bunch of sugar into juice and letting it sit for a couple of months takes almost no effort.
Want something stronger? Put your newly created Cider in the freezer for a few hours then remove the ice. Congratulations you just freeze distilled your Cider in jack (nearly 30% abv)
I doubt a “less potent form of drugs” will happen exactly as you imagine. Drug potency has skyrocketed because logistically it’s easier to smuggle smaller quantities of a high potency substance. I personally think we would see a resurgence of drugs and doses of what people were previously doing before importing them got so difficult. What would be interesting though would seeing if any new analogs could be discovered with shorter term effects especially in the world of stimulants.