Again! I found the class attributionDialogManager but I have no idea on how to use it. What I try to do is replace/complete the text from the attribution dialog and or manage a click on the control to show a full page with all attributions. With the JS version I do no show the attribution dialog but provide a full page with all attributions related to components, map (OSM), style sources, fonts used and so on...
Suggestion from @lepigocher
Bounty direction: https://github.com/maplibre/maplibre/issues/191