I've used and I loved it, but then I upgraded my camera and this software does not support new Canon CR3 RAW files yet... Sadly I'll switch to Lightroom until it does...
It looks like the ability to read the CR3 format may be available in freshly-compiled distributions of darktable soon, at least for some cameras. It relies on the exiv2 image library, which added support[1] for CR3 in v0.27.4.
That said, there are some notes in the darktable issue[2] that suggest that the darktable rawspeed library also requires some updates[3].
That said, there are some notes in the darktable issue[2] that suggest that the darktable rawspeed library also requires some updates[3].
[1] - https://github.com/Exiv2/exiv2/releases/tag/v0.27.4
[2] - https://github.com/darktable-org/darktable/issues/2170
[3] - https://github.com/darktable-org/rawspeed/pull/271