You didn't get my point.
If you want to do amazon on IG, look at people that are already doing it (like the example) and see if they are having success...
From what I see, he has very little engagement.
If I were to do amazon, I would build a niche website for it. Lookup the many journey threads on BHW regarding amazon niche sites. It's very interesting, but more of a SEO thing that a social networks thing.