I'm curious which operating systems people are still waiting for. We have delivered Windows, macOS and Linux on stable as of Flutter 3. We don't have plans to add more, but people in the community are working on things like embedded Linux: https://github.com/sony/flutter-embedded-linux
Disclosure: I'm a Developer Relations Engineer for Flutter
Thanks for the update, although it should be pointed out that that was apparently very recent, as in May 2022. It's not like it's been there and makes my comment that people have been waiting on it inaccurate. I wasn't aware of stable macOS and Linux support, so thanks for pointing it out. As far as I know, Windows was the first to get stable desktop support from Flutter, and that was just at the very beginning of this year. Even now, the official Flutter Desktop webpage links back to that release as "new": https://flutter.dev/multi-platform/desktop
Flutter still cannot manage multiple windows on desktop, which makes it a no-go for my use cases, and it doesn't look like it's coming anytime soon: https://github.com/flutter/flutter/issues/30701. The original issue has been sitting around for four years.
Disclosure: I'm a Developer Relations Engineer for Flutter