Twenty-three years after Drupal's inception, we are preparing to launch a second official version of Drupal. 
For the time being, we're calling this second version "Drupal CMS". 

Drupal is a free and open-source content-management framework
Drupal is a free and open-source content-management framework that can be customized and is suitable for developing simple websites or complex web applications. 

Drupal 10 - New Features, Release Date, Migration/Upgrade

A Digital Experience Platform (DXP) is simply a platform for providing rich cross-channel personalized digital experiences.

Many people jump to the conclusion that decoupling will solve problems unrelated to a decoupled architecture. Decoupling doesn’t mean a website will have a cleaner content model or a responsive design.
hose are separate solutions for separate problem sets.