uploading mkv instead of mp4 to youtube

[codemaster]

In the YouTube documentation, it is recommended to upload mp4 files with H.264 and AAC streams. But I don't want to do that, because I prefer to upload mkv files with H.264 and PCM 24 bit streams.

My question is: are there any disadvantages or repercussions if I deviate from what YouTube recommends, and upload mkv instead of mp4? Are there any good reasons to choose mp4 instead of mkv for uploading?

[4kblurayguru]

upload 10 seconds and see if they accept it

you already did it
https://forum.videohelp.com/threads/412503-youtube-player-slightly-shifts-the-colors-of-my-video

Are there any good reasons to choose mp4 instead of mkv for uploading?

because they say so

[codemaster]

I know that uploading mkv works. But why would they recommend only the mp4 container, instead of recommending more than one, such as mp4, mkv, and mov? Why don't they recommend a container that allows lossless audio, so that the audio will not be encoded twice?

[Alwyn]

Probably because they don't want to confuse or make things more complicated; it's no doubt targetted at the general riffraff, not power users who know what they are doing.

In any case, YT doesn't actually specify the container, only the codec here:

https://support.google.com/youtube/answer/4603579?hl=en

You can have H264/AVC in the MP4, MKV and MOV containers; I doubt that YT would care what container the video was in.