I think having presets for query builder in a dropdown that cover a lot of the basics would make learning and using FacetWP much easier. Alternatively, a repository of example queries would help that isn't mixed up in gists and in the Facet UI on templates page you can link to it.

Ability to add more than one search term in searches using a comma. For example: cars, trucks. Something like 'tagify' where the inputs become tags (https://yaireo.github.io/tagify/)

I'd like to be able to merge (link) facets without having to do so in code. For example, title, category and tags for autocomplete. You could have 'link' groups in the admin backend and if you assign a facet to a group it automatically does the remapping.

I'd like to have 'categories' in select but the search to search products.

I'd like the ability to easily customize the facet styling in markup using utility classes and to be able to remove the default styles without breaking the javascript. Simple things like horizontal radios, buttons etc. and more control over design are a bit tricky currently. Would be great to have an easier way to template/create new custom facets and bring in additional js with alpine and styles with tw.

I'd like to have an easy way to sort by featured products in the sort menu and then sort the remaining items by 'x' (date, title, etc.). Struggled to find this but seems like something people would want.