Category Search Listing Widget
Currently, collection pages are repository-driven, meaning that features like Dynamic Curation won't apply when navigating the menu instead of making a search.
The Widget attached to this post is a sample search-driven Product Listing Widget, that will allow you to have search-driven collection pages. This is a sample, so not formally support and provided as reference only.
NOTE: Once deployed, Catalog Admin ordering will no longer take effect, so if you want to manually sequence some products, you may want to consider using the Boost functionality within Dynamic Curation instead. More information on this was provided in a webinar from October 2020