Max representable frequency is half the sampling rate (nyquist-shannon theorem), which is still a bit above normal but IIRC the extra headroom has something to do with eliminating aliasing
> Nvidia’s Auto Shader Compiler is distinct from Microsoft’s Advanced Shader Delivery system, which lets developers generate databases of precompiled shaders that can be downloaded ahead of time to align with a player’s specific system. Nvidia said earlier this month that it is “working closely with Microsoft” to add Advanced Shader Delivery support to its GeForce RTX line “later this year.”
Most of the places I've lived have vented stove air outdoors. I've had the kind you're referring to as well, but outdoor venting hasn't been uncommon in my experience. Maybe it's a regional thing; I'm on the east coast FWIW.