Install all plugins available in Appearance → Install Plugins right after activating the theme and before importing the demo content.
The theme will work even if you won't install any plugins but you won't have access to many of its features without them.
Most plugins from https://wordpress.org/plugins/ have severely inadequate code quality.
We recommend that you install only the popular plugins and ideally review their code before installing anything.
Plugins from https://woocommerce.com/product-category/woocommerce-extensions/ are often of average quality and could be improved.
They should typically work with this theme out of the box (because we do little modifications to the core WooCommerce templates) but sometimes adjustments may be necessary.