First I need to clarify that the Page Title Block is being used properly. What is the difference between the Page Title Block and standard Title Field in a node content type?
After testing Page Manager, Display Suite and Switching themes. The Page Tile Block value does not show up anywhere.
I've placed the Page Title Bock within different field groups to display but nothing shows up.
I've tested several settings for the block and still nothing. The only thing that would show on a display is the Page Title label.
I am using a Drupal 8.8/Thunder setup.