Confluence data is still not in the list. We can use the nomination process to work this around. There is an open ticket since to LF IT to include Confuence data to the list. There is an authentication issue. Most probably this can be fixed today.
Persons with Confluence contributions will need to nominate their contributions to TSC approval if the issue is not resolved.
The tool should read email addresses in GitLab in the git commit messages to identify the users and their affiliation. This seems to be not working based on Cédric Ollivier-s data.
LFX Insights checks the ID from the commit, in some cases an algorithm is used to determine the committer
The above does not include GitLab! But there is a ticket to mirror Gitlab activity of DOCS project with gerrit, making the activity visible to Insights in the sufficiently near-term.