With your 'video games' example, there will be more video games made. Additionally, this may cause more people going into that field, using GPT as a tool. Thus,

With your 'video games' example, there will be more video games made. Additionally, this may cause more people going into that field, using GPT as a tool. Thus, wages in that position will come down, as the barrier to entry is lowered, and there will be increased competition.