When I was reading the documentation on the supported file formats. (darktable user manual - supported file formats), it occurred tho me that somewhere else on the website it is mentioned that that some formats are explicitly not supported. Would it be an idea to add this to that page:
The following formats are explicitly not supported:
Apple ProRAW DNGs (iPhone)
CinemaDNG lossless (Blackmagic, some DJI, etc.) and lossy (Blackmagic)
DNG 1.7 using JPEG XL (Adobe enhanced, Samsung Expert RAW)
Fujifilm lossy RAFs
Nikon high efficiency NEFs
Phase One other than IIQ L
Sony ARW 4.0/5.0 downsized lossless (“M” for full-frame, “S” for full-frame & APS-C) and ARW 6.0 lossy