30fps stutter/judder on OLED is not hyperbole nor a "nonsense take" since it's something that's tied directly to the hardware, the fast response time of OLED TVs causes images to appear more quickly, so images are displayed on screen for longer which causes said stutter, it's how they work basically.
Now, maybe you don't /can't notice it, maybe you have VRR turned off system-wide and you're gaming outside of game picture mode with some motion interpolation already active per profile/picture mode, maybe you're playing lots of games on quality mode/30fps and your brain got used to it but it's there, this is not about the usual "OMG I got so accustomed at playing at 60fps that now 30fps is unplayable ", this a side-effect introduced by the instant response time of OLEDs.
Before getting my C2 I used to read about this very thing and just dismissed it as the "typical internet hyperbole", well, after getting it and giving a couple of 30fps games/quality modes a go...yep, it's that bad.
Never had such a problem with LCD or even Plasma screens, this is purely an OLED thing.
Cheers