If anyone wants to try this, a friend sent me one link to a device called Levo which does “herb oil infusion” aka it lets you make weed brownies easily. I clicked the one link my friend sent and now I get ads for Levo constantly in my YouTube adroll. Though I should say this is obviously on Google’s ad network specifically and I have no idea if this applies to other networks.
No I realize the differences. I am just saying that if someone wants to see if their encrypted app is resulting in ad serves, they could try discussing this product in encrypted chat only, using the methodology described in the comment I was replying to above.