I think it should be required to state if a written statement is written by a GPT.
"This text section is written by GPT provided by company XYZ"
Then humans would know that a particular part is written by an AI.
"This text section is written by GPT provided by company XYZ"
Then humans would know that a particular part is written by an AI.
Humans would know if a part is written by an AI or not only if there is a way to enforce the rule.