But Amazon started as marketplace and people associate the brand with that, also with their Amazon Basics stuff. But is the experience for the user is not equal

But Amazon started as marketplace and people associate the brand with that, also with their Amazon Basics stuff. But is the experience for the user is not equal for brands that have been working in their solely brand reputation. I think that they fall into “I do it because the competitors have done it before”, it would be nice to know the revenue for the marketplace part and time invested in development.