Remarks
1 FLOSS apps generally expose more of the processing. This is advantageous because with patience we can do better and more informed processing. The purpose of using LMMSE is just that. It is careful not to bulldoze noise to the point where it mixes with signal, which would make denoising more difficult in the long run.
2 I find that the hot, dead and everything in between pixel correction in dt and RT are not aggressive enough in some cases. In that case, I just use G’MIC or GIMP to fill in areas affected by such pixels. I guess the most correct method is to find their coordinates and filter or mask them prior to the demosaicing step.