"I don’t personally know of a single leading tech product company that is using SAFe" (quote from Marty Cagan)

Very true. I also do not see truly agile companies using SAFe - the ones that use SAFe are the ones that don't know what else to try.

Agility arises from behavior - not process.

For those who are interested, here is an alternative approach that is based on elevation of behavior (Agile 2), culture, and knowledge of Lean, Flow, and DevOps patterns: https://www.agile2academy.com/ca-intro