Kinda doesn't matter. With or without fans, the M5 is just too weak in general to run the game at high preset. Need M5 pro minimum but that's a lot more expensive. Maybe the M6 can bring M5 pro graphics performance to the air, as that would be ideal.
The Apple MacBook Air 13 M5 has no active cooling. This means that the M5 SoC inside the machine thermal throttles heavily under sustained loads. This thermal throttling reportedly takes a massive toll, as the MacBook Pro 14 M5 is over 40% faster in Cyberpunk 2077.