Hi @fordale
Regarding your question about themes, in WordPress, which WooCommerce is built upon, you can only activate one theme at a time for your entire website. This means if you change the theme, it will apply to your whole site, including your WooCommerce shop.
However, there are ways to customize the appearance of your WooCommerce shop without changing the entire site’s theme. You can use WooCommerce shortcodes to customize the look of your shop pages, or you can use a page builder plugin like WordPress Block Editor, Elementor or Beaver Builder, which offer more design flexibility.
Additionally, some themes support WooCommerce deep integration, meaning they have specific styles and features designed for WooCommerce. This can make your shop look different from the rest of your site, even though it’s using the same theme. Here you can browse some of the WooCommerce supported themes: https://woocommerce.com/product-category/themes/
I hope this information helps! Thank you for choosing WooCommerce!