A final resolution for this issue requires additional changes by the manufacturer. As soon as those are available, we will be able to affect this specific issue.
The "raw" DNG on the GRIII series is already de-bayered (or "de-mosaiced" like a TIFF), and Adobe's AI Denoise seems to need the Bayer matrix data intact to work.
I think it's unlikely Ricoh is going to update the GRIIIs to add another RAW output option, but who knows.
If the de-bayering information is correct, there would be no retroactive solution for Ricoh GR III/IIIx photos already taken. That would indeed be a bummer. I am wondering, though, if maybe Adobe could consider a different approach? I tested DxO PureRAW which seems to use similar technologies. It is, however, able to de-noise Ricoh GR III/IIIx files. And it handles them very well.
I have a Ricoh GR III and Lr's AI noise reduction no longer works. Before it worked very well and for some time now, I have launched it, everything works normally, but there is no difference with the original image. Of course I do RAW (DNG). I also have a Sony a9 and it works very well, it's just that the images from my Ricoh are buggy... do you have the same problem?
Any updates on this matter? It has been quite a while. This is really frustrating. It would be nice to know if the engineers are working on it and if we can expect a solution. When? If not, I probably need to invest in an additional app.
Any updates @RikkFlohr on the situation? I want to get a third party denoising app if it's not going to be fixed any time soon (which is an awful shame). Thanks.