Running Joomla 4.0.4, Helix Ultimate 2.0.5 and Page Builder 3.8.1.
The Smart Search - SP Page Builder plug in is enabled. All content is created using the SP Page Builder from within Joomla Articles.
The Smart Search index was cleared and reindexed. There are no filters, and the Content Maps includes literally everything. According to the Content Maps, all the content is being indexed.
Search results pages STILL only show the Title of the article. It does NOT include any of the page content descriptions even though that is clearly enabled in the options.
Now if the article is created completely in the Page Builder Component, then amazingly that content gets properly displayed with both a title AND description ...
... so OBVIOUSLY we're not asking for something that can't be done. It's already BEEN done - just only on articles created specifically in the Page Builder Component, which IMHO is way too combersome and unuseable. However the Page Builder Plugin used inside a Joomla article is far more user friendly and manageable - and it truely is a GREAT product as an addition to Joomla articles.
Why is this still an issue in Joomla 4?? This has been complained about for years. You've had plenty of time to correct this going into J4 and it's obvious that your avoidance of a solution is on purpose. It is clearly NOT a limitation of the platform or of the CMS.