This rumor is rubbish of course, but it's just such a bad idea anyway. Don't give the devs even less reason to optimize the code and push the PS5 to its limit..
WWe're still just scratching the surface of what the PS5 is capable of.
What are you talking about??
There's not much room to improve the code.
Shitty developers like Ubisoft only achieve in open world games raytracing in 30 fps.
Capable developers like Insomniac achieve raytracing with a dynamic Resolution 1080P-1440p with 60fps.
Insomniac already confirmed that they can only optimize the code a little for raytracing.
That's It. The console is already nearly maxed out.