Mindshare is mostly nonsense, and condescending to the customer. People buy Nvidia because they innovate new technologies add a ton of features, and then bring those technologies and features to games and applications. They add additional value, and many PC gamers have interest in areas outside gaming otherwise we would just get consoles. You can argue we don't need those technologies if you want, but as those techniques mature that is becoming an increasingly difficult argument. Nvidia brought tessellation, CUDA, Frame reprojection, NVENC, Variable refresh rate, Ai Upscaling, Ray tracing, Frame generation, RTX HDR, Broadcast, Reflex, mega geometry, Neural rendering during that time AMD has just been reactive and didn't innovate, they have some of those features now but only because Nvidia did it first, and a lot of the time those features were tacked on to existing hardware not planned or designed for.
In the 5000 series alone Nvidia has added DLSS transformer model, mega geometry, Neural rendering MV-HEVC, 422 chroma encode/decode. Transformer model is looking like a big reason to choose NVidia unless FSR4 is extremely special, and the improvements to NVENC are massive for content creators and VR users.