TL;DR: Working with flutter is fun and efficient and the resulting app is great but not quite on par with a native HTML web app (yet). If you intend on releasing mobile and desktop apps as well, and/or your app is supposed to feel more like an app than a website, then you’ll be very happy with Flutter.24 Eyl 2021
Read moreIs Flutter production ready 2020?
Absolutely Yes , A lot of people have developed and put in production applications with Flutter me also me and it work pretty fine. BUT if you want to put in production Websites done with Flutter i think that you have to wait a little bit since it is not stable.
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