P: R5 colour noise slider

I think the "Color" noise slider in Lightroom Classic has a bug specific to the Canon R5, in which the value gets multiplied by about 4 or 5. A setting of 5 for the Canon R5 is about the same as 25 for any other camera. At a setting of 25, low ISO images with pushed exposure and high ISO images show severe smearing of colours in the shadows. A similar thing happens for other cameras when the colour noise slider is set to 100.

I provide more detail (including sample photos) in this DPR thread:

https://www.dpreview.com/forums/thread/4593805

The Canon R5 has been around a long time. It is an expensive camera and will soon become one of the leading full frame cameras. It astounds me that Adobe could allow a bug like this to make it into production software and then be left for so long. I am increasingly saddened by the poor support Adobe put into Lightroom Classic. I pay my monthly subscription fee, but my resolve is constantly tested.