Jira team at Atlassian uses post-its to organise their work

I was there from 2015 to 2019 and I don't recall postit note boards being used much. We (tried) to use them for retros, but the postits wouldn't stay stuck to the glass walls in the meeting rooms. The only thing that stands out is that every team would use Jira and Confluence in a different way. People talk about using Jira in the "Atlassian way" but I don't know if there is one