Encoder Presets and Tunes could use some polishing

[neroes]

it would be good if we could get some more description about what each encoder option is,
and perhaps some ideal use case
i for one am very confused about "encoder tune" profiles
Animation I'm guessing works well with cartoons and anime
Fast decode is probably optimization so that it is easier to decode
but I'm quite confused about the remaining "None","PSNR", "SSIM", "Grain" & "Zero latency"

[bradleysepos]

Our documentation does have this information, albeit for an older version of HandBrake. Perhaps we can revise and bring this forward for the current version at some point.

https://handbrake.fr/docs/en/1.2.0/technical/video-x264-presets-tunes.html