Hi,
we at Adapta made a new report that shows insights for multiple courses on same page.
I added some description on the External development projects activity in the Learning Analytics course with name: Show insights for multiple courses on same page.
The idea is to evolve this idea an make it into core Moodle if it helps the community.
The link for the code is:
https://gitlab.com/adapta/udesc-moodle/-/commits/UDESC-Analytics