Yeah, if I remember right, when I was converting some high resolution uncompressed TIFF images to lossless HEIF / HEIC on macOS preview, most of them looked off

Yeah, if I remember right, when I was converting some high resolution uncompressed TIFF images to lossless HEIF / HEIC on macOS preview, most of them looked off because colour space conversion was happening (I think from RGB to YUV). (Not to mention many actually failed to convert because none of the HEIF / HEVC encoder I tried could handle very large image sizes). I finally opted for JPEG2000 format to archive those images. I've been waiting for JPEG XL for sometime now to be ready - by my rough calculations, I may be able to get an extra 10 GB space by converting these images to JPEG XL, without any quality loss or issues.