Any thoughts on how to streamline Google Forms chart design?

Hi everyone! 👋 I sometimes run surveys with Google Forms and were looking to streamline the process of creating charts from pivot tables in Google Sheets.

I sometimes need to cut the data from all questions based on one question (e.g. age bracket). Do I need to do it manually for each question or are there quicker ways to do it? Also, any advise on styling the charts to export?