I get the subconscious thing, sure. I subconsciously find brands REPELLENT if I think they are familiar options likely because they are popular with ad-susceptible people.
What happens in practice for me is that I don't buy a lot of stuff besides core needs in general. But when I do, I'm super resistant, I have a defensive posture as a consumer. And the one time I let my guard down a bit is when I have the impression of some product just being good quality stuff that is advertised only in organic ways.
I mean, put another way: I don't have bias against searching for a class of products, finding a website of product X, and reading from the company about the virtues of it. I'm not as open to that as if a trusted friend recommends it, but I'm not opposed to it. But if I find out that the company paid for Facebook ads or whatever, it pushes it into a subconscious category in my head which is something like "this product is out to trick me into buying it", and I have a gut-level mistrust from that point on.