Government agency
Screening before the application
Applications that never could be granted cost twice: processing time on your side, and weeks of waiting for a rejection on theirs.
The guide asks a couple of questions and says within a minute whether applying is worth it — before the form. Rules and thresholds live in the guide and can change the same day they change in the world.
The gain: fewer applications that never could be granted, and an answer in a minute instead of weeks.