Check your console’s ventilation. Overheating can cause unexpected shutdowns, so make sure your PS5 is in a well-ventilated area and not obstructed by dust or objects.
Although my PS5 has always been on a well ventilated spot, I opened the console for the first time since I bought it (nov 2020) and it turns out the fan was half covert in a thick dust layer. I cleaned up the console with a vacuum cleaner and compressed air and I haven't had any black screens in the game since. I never saw this before in another game, so I guess Split Fiction is pushing the console to its limits and (in my case) caused the PS5 to shut down because of overheating.
