If I go to a site I already know what I want. Ie you don’t have to ‘sell’ me the product 99% of the time.
most of the time I google search the product, check prices, go with a major name with a good price and doesn’t need to be the cheapest.
I love getting free shipping. I’ll generally always buy over the dollar figure that gets me free shipping providing it’s not a super niche website.
Amazon platform for marketplaces is where more will go. China is heavily TMALL and JD for marketplaces. Buyers go back to one place, one search engine, feel safe buying, fast delivery, good prices. If our Amazon dow under was anything like the US (we have bugger all products on ours) I’d likely only ever use that app.