No, Max Originals are the new line of content that's exclusive to the HBO Max app. They do not appear anywhere else in the US, so they're not on the HBO linear channels. Max Originals include series like The Flight Attendant, Love Life, and Raised by Wolves and movies like SuperIntelligence and Locked Down.
HBO Originals -- that's the stuff that makes up the traditional HBO service (outside of theatrical films) -- series like The Wire, GoT, Insecure, plus original docs, etc.
On the HBO cable channels you just get the HBO Originals plus the theatrical films that HBO currently features. In the HBO Max app, you get all that plus the new Max Originals as well as lots of older seasons of TV shows, plus additional movies. Entire series like Big Bang Theory, The West Wing, Friends, Looney Tunes, etc. plus past seasons of certain current series like Young Sheldon, Rick and Morty, Snowpiercer, etc.