Free software for minimal post-processing requirements

I wanted to ask for a recommendation for a free post-processing software.
As I am primarily a jpeg shooter – who keeps the raw files "just in case" – my requirements are quite minimal:

  • cropping
  • rotating
  • converting to B&W
  • changes to white balance, saturation, exposure
  • ability to work with RAW files from Leica M9, Fuji X-Pro2, Ricoh GR and GR iii
  • works on Windows

Would you be able to recommend such a software? In this forum I have seen mention of "Darktable" and "RawTherapee". But I was not sure whether they meet these requirements, especially around the RAW file formats.