>>4411080There are legitimate differences between different sensors, which can't be corrected by any kind of profile, because it is baked into the RAWs when the picture is taken. As an extreme example imagine trying to correct a full spectrum image to normal colors, it just can't be done. Thankfully people have recently started to recognize this and there have been attempts to quantify and compare those differences.
Here is an example Dxo test, interesting that with presumably the same sensor, the Sony gets worse results. But there is not a consistent pattern, some of the Snoys outperform similar Nikons and Canons too. I'm not sure the specifics of how this is tested so I don't know how well it captures the nuance.