For me PL2 is a start point as it produces the best RAW development of any app. After that I send the image to either NIK plugins, Luminar or Affinity for further work
I have a hardware calibrated monitor (100% sRGB, 98% Adobe) and the print company is use for prints specify all files to be sRGB. I soft proof using Affinity and the icc profiles supplied by the print company for the papers they use. So far, it all works fine as a process.
I would much rather have luminosity masking as that has the potential to impact every image that I work on. Soft proofing only matters when I physically print which isn’t that often.
Neither a DAM nor Soft Proofing even come close to making my wish list.