You forgot ffprobe. ;)
$ ffprobe -h has about 2000 options.
Hmmmm.. I guess I should be able to learn all those over a cup of tea 😉
And don’t forget filter graphs.
....Well actually I might give them a miss this week.
In summary, I'd say you really need to be very keen and with a lot of time to spare,
if you intend to get into the world of audio/video on computers.