Yet, I only used the low pass filter for noise removal in case of really heavy chroma noise as it seems quite aggressive to me. Using the new LAB blend modes is an interesting idea. I wonder how it compares to using one low pass instance with blend mode color.
In general I prefer the proiled denoising. Here I like to set the blend mode to average. Someone gave the advice in some thread here (can’t remember who and where). It creates a significantly more pleasant result at least IMHO. It avoids this painting-like and/or blotchy look, which can easily occur and you don’t have to be that careful, when pushing the sliders. Also when using average blend mode, it is still recommended to focus on shadows using the parametric mask, as shown in the video. In case of stronger noise I tend to choose wavelet mode. Pulling down the opacity may give a more natural look then.
For chroma noise removal I like to use another profiled denoise instance, which is set to wavelet and blend mode color.