I am able to overwrite modify the following components:
Main, App, Footer, Header, Logo, Routes, CategoryTree by following Doc: ref:https://magento.github.io/pwa-studio/tutorials/pwa-studio-fundamentals/modify-site-footer/
To modify component such as CategoryTree i required override Webpack plugin. REF:https://amasty.com/blog/how-to-create-pwa-storefront-using-magento-2-pwa-studio/
But not able to figure it out how to modify/overwrite Gallery component.
anyone any ideas what I' missing ?