The Flutter engine API has no platform specific dependencies, has a stable ABI and is available in its entirety in a single C header file [1]. It's ideal for embedding.
I just can't imagine scenario where it's cheaper to use something like Flutter and port, test, debug and maintain it in operating systems and devices myself or find consults to do it to me.
I'm an entrepreneur with 6 guys working for me. 4 of them write embedded software, 1 uses Qt. I pay for Qt because cost/value is right. I don't develop any more software than I have to. I get a product, I can buy consulting with reasonable price.
> I just can't imagine scenario where it's cheaper to use something like Flutter and port, test, debug and maintain it in operating systems and devices myself or find consults to do it to me.
Currently, you're exactly right. Google is using Flutter for some of their embedded products, but it's going to be a long time before it's anywhere near as plug-and-play as Qt for the average developer.
The future of Flutter is looking quite promising, though. It's worth keeping an eye on.
[1] https://github.com/flutter/engine/blob/080fbcb1759e5916f0d6c...