The term "Orwellian" in describing language comes directly from the properties of Newspeak.
"Orwellian" can mean other things when describing state power or surveillance technology, but in this context it is being used to describe language so the connection to Newspeak is the relevant one.
"Orwellian" can mean other things when describing state power or surveillance technology, but in this context it is being used to describe language so the connection to Newspeak is the relevant one.