@flood-jesse So currently this exact setup with text/buttons filtering the gallery, would require the use of code.
If you’re not well-versed in code, you can use dropdowns to filter by user-input. https://support.wix.com/en/article/filtering-content-based-on-user-selection
There’s a feature request for more options from more user-input elements like selections tags that were probably used in the example. https://support.wix.com/en/article/request-filtering-collection-content-from-a-selection-of-user-input-elements
There is an option to make sub-galleries for a gallery too .