The official documentation says:
The flutter tool uses Google Analytics to report feature usage statistics and send crash reports. This data is used to help improve Flutter tools over time.
Flutter tool analytics are not sent on the very first run.
Dart tools might also send usage metrics and crash reports to Google.
Disabling Analytics for the Flutter SDK
Run the following command.flutter config --no-analytics
orflutter --disable-analytics
Disabling Analytics for the Dart Language
Run the following command.dart --disable-analytics
These commands worked for me directly after installing Flutter from AUR on Arch Linux.