At least Armstrong didn’t make “Mountainhead” into a series. So there’s that.

“Mountainhead,” which the “Succession” creator wrote and directed, is a new made-for-HBO movie that leaves behind the backstabbing machinations of media moguls for the not-any-better power plays of tech billionaires.

During its four-season run on HBO, there was a critical consensus around “Succession” that I did not share. Most felt the series was an entertainingly scathing, darkly funny dissection of the rich and their ridiculous,