At my company it's Google and it's history of deprecating products that many people and/or companies depended on. Flutter is OS, but it can't survive without a big company to sponsor development (at this stage).
Saying that, we've started a flutter project this year to see how it goes (the rest stays native or RN)...
Your understanding of poor is really different from mine. Here (Europe) poor people don't buy online, they go to the store for food, it's cheaper.
Amazon is a luxury, not an essential provider.