A decade ago I participated in three and won several awards but was disappointed with the government response to all our collective efforts and stopped participating.
Specifically “not invented here” was prevalent as a response to projects that represented hundreds of man-hours of effort.
It was demoralising to say the least.
I’m not sure what the missing ingredient was, but two of our projects were directly related to government effort in relation to public transport and public housing. Neither went anywhere despite face to face presentations to senior stakeholders in the relevant departments.
The third was a search engine with a completely different approach to that in use by the popular engines.