[orev]

Given the prevalence and longevity of GNU style short and long options, pretty much anything that doesn’t follow that is “out of compliance”.

However, you also called out some very specific commands that are that way for a reason. For example the order of options for ffmpeg matters very much, as that’s used to construct the processing pipeline. It does make sense for certain things to be custom, but that should only be done when there’s a good reason.