Gather News URL, Name and Summary via API

Hi Folks,

within our Org we are planning to remodel our own Intranet to have employees and other members of the org have news prominently displayed there.

Since we have M365 with SPO for Personell and Key Volunteers, but also use our Intranet News Feature to deliver news to everyone in the Org we are at a point, where we want to "merge" the display of News from both worlds. (Guest Access for SPO, etc. is already in the works to be invited by API on request but we will never get to the point where we exclusively use SPO for News distribution)

In my Research I found that topic from 2017: Modern SharePoint Sites - News Page API - Microsoft Tech Community but I can't completely comprehend how to do, so I can get the info to our developers and creating the concept for implementation.

Can someone redirect me to the correct Graph API Documentation or tipps I can give our Dev Team?