Programmers in game studios use AI coding tools. Not all of them yet, but it's getting popular lately. Gen-AI in concept art is very common. Artists paint modifications on top of AI generated image. Photoshop has various AI tools nowadays (context aware fill being one of the first). Translating text and dialogue to different languages is often done with AI. In rendering side, big studios have been talking at SIGGRAPH about their AI based light probe placement and probe/texture/material compression algorithms. AI based terrain generation and prop placement exists in big engines. DLSS from Nvidia is well known AI upscaler. DLSS5 adds gen-AI to the mix, etc, etc. There aren't many games left with no AI used in their production.
Somehow I doubt the terminally online grifter who's had nothing to do with the games industry for decades knows what "all games studios" are doing.
Maybe if he used AI, he'd finally be able to release whatever his scam geme is called.