Do you mean the content is not indexable and searchable withing Drupal?

Layout Builder is a sitebuilder solution. Layout Parapraph is designed for content editing solutions.

My clients don't build their site themself, I provide them the tools to do content editing. Layout Paragraph is more self-explanatory in use. With Layout Builder I see clients having troubles with managing sections and the properties displayed in a sidebar.

From an architectual point of view, working with paragraphs feels much more logic than blocks (used by Layout Builder).

Don't hesistate to ask for help while discovering Drupal more and more ;-)