I don't have stability issues with digikam while using it on fedora

Right, I'm not switching to Linux just for digikam.

  Since digikam can open any lot of images in a side application for edition

If I'm going to open a photo in Lightroom anyways, why not use it for asset management? I'm not wedded to an all-in-one solution, but neither digikam nor darktable/rawtherapee offer enough of an improvement over the respective modules within Lightroom to warrant usage.