Honestly, I am a bit suprised at the question being asked. Search Solutions has been one of the most powerful parts of SharePoint.
Here is a sample scenario (I have implemented tons of them, also copying pros like @Benjamin Niaulin who have published articles on this type of stuff for years).
- We keep track of Safety Data Sheets for our products -- tens of thousands of documents
- They are kept in multiple document libraries throughout SharePoint, but all share the same global Content Type
- Users do not access the document libraries directly, they access a "Custom Search Solution"
- We track metadata including Operating Company, Country, Language, Product Name, Product ID, Active
- All of this metadata is set up inside the SharePoint Search Schema
- When a user searches for a product, they may be presented with data sheets from multiple regions, and then can use filters to narrow down specific options based on language, country, etc
- We use a custom display template (javascript/html) to change what information you see in a individual result - so it isnt just a boring document title and a paragraph, it is more of a table / graphical representation of the document and its metadata
- We leverage advanced search results query rules to preset refiners as well
- For example, our Europe operating company can direct link to a pre-filtered search result by adding the url query string "?region=Europe" to the URL and using the query rule "{?RefinableString110:{QueryString.region}}"
- Also we use metadata like Active = Yes to only show Active product documents in our solution, even though technically users could access inactive ones, then a mirror search solution will show both Active and Inactive to internal teams that should look at the
**IF** this is not planned to be included in modern sharepoint, I am beyond shocked (and concerned). Highlighted Content doesnt come anywhere close to meeting these needs.
