How to configure the existing search system to exclude content types and/or nodes from the search index? As far as I see, the search api has no effect on the existing search. The video about State of Search Drupal 8 - Basic Usage of Search API  indicates that you have to supply an own view for the search results.

Isn't there a way to configure the existing search system to exclude content types and/or nodes from the search index?
There is a new Search Exclude (Node) module


  Exclude content types from node search for Drupal 8.