SAFe Scrum - Is it actually Scrum?

How much does SAFe Scrum differ from ScrumXP and Scrum according to the Scrum Guide?

The Scaled Agile Framework (SAFe) got an update. You can even say it got a massive overhaul. One of the changes is the development method for the Agile Teams. This used to be ScrumXP. In SAFe 6.0, this is replaced by SAFe Scrum.

But how much does SAFe Scrum resemble Scrum, as depicted in the Scrum Guide? ScrumXP certainly didn’t qualify as Scrum. In fact…