“shatter”? maybe. there are certainly lots of folks that make it. if it’s actually “shatter” then it is a premium product, and has not been decarboxylated. it could also be distillate or isolate with terpenes. Did it come with any documentation? (COA=certificate of analysis).
does CBDA vs CBD matter for edibles. decent question. most CBD being thrown at the market has been decarboxylated. So most data on CBD efficacy has been collected using CBD rather than CBDA. There is certainly some data suggesting CBDA might be more effective in some cases. which I would consider enough to warrant trying both.
you might damage your CBD slightly if it has already been decarbed (and distilled, then crystallized and made into a slab), but unless it has also be adulterated, that degradation should be minor if decarbed at resasonable temps (100-140C). as decarboxylation generates CO2, attempting decarb a small aliquot to see if it makes bubbles (you might want to find a video, decarb bubbles are quite specific at STP).
have you made gummies yet? Need gummy recipe (recipe inside)