There are lots of How-to guides for creating Business Chart in C/SIDE, but I am not able to find any guideline for creating Business Chart in Visual Studio Code for Business Central.
“Bits and pieces” can be found but no full “walk through”.
Have you tried to take one of the existing ones and convert it from C/SIDE to AL?
Generally you should expect that the suggestions would go in directions of Power BI - Due to that we are going the switch from the Classic Windows Client to a browser client.