You can apply filters to the following components:

✔️ Charts
✔️ Filter controls
✔️ Groups
✔️ Pages
✔️Reports

Filters can be inherited, meaning filters on higher level components apply to the components beneath them. The order of inheritance is: Report level > page level > chart/control level

https://support.google.com/datastudio/answer/6291066?hl=en


You can specify data sources at a page-level, rather than individually for each chart (although that’s perfectly acceptable too). The advantage of this page-level approach is that you can apply filters which will then be implemented across all your charts in that page.
https://www.benlcollins.com/dashboard/google-data-studio-tips/