Properly vaped weed loses almost all potency, thc, and cannabinoids...
Whoa whoa whoa...
Somebody needs to do some better research. And im not sure what you mean by "properly vaped". There are still quite a few cannabinoids left on the bud after vaping.
Now depending on the temp at which you vape at, makes the difference in what cannabinoids are leftover. The many different cannabinoids have dofferent flashpoints. Meaning that dif temps release dif cannabinoids into vapor.
Delta 9 thc is roughly 300 while your CBD is up around 380-90 (dont remember exactly).
So if you are vaping at 370, then your bud will have many left over cannabinoids such as CBD and CBN. These produce more of your body high while delta 9, thcv , and the others produce more of a head or cerebral high. These head high producing cannabinoids have flashpoints which are much lower though.
So this is the only deciding factor of effects from abv. There ARE MOST CERTAINLY cannabinoids left over no matter how "properly vaped" your bud is
So long story short, your brownies may give more of a couch lock than brain blast off, but in the end im sure you'll enjoy