It’s possible that it might only be a thing in PAL regions - I’d try, but I don’t have anything that uses composite to try now.

I swear that I’ve seen it mentioned somewhere, but you are entirely right that I can’t find a source. Maybe it was some weird device I used a long time ago? Regardless, sorry for not doing my research before posting

Inaccurate meme - the white and red RCAs in composite typically don’t actually carry the left and right channels - usually, the white one is L+R, meaning both the left and right channels combined into one, and the red one is L-R, the difference between the right and left channels.

This is done so that a mono television, which will only have a yellow and white port, will still be able to hear both audio channels, as opposed to having to completely miss out on one of them

Unfortunately, there are many people still on Reddit. I predict that this is going to be like the Twitter migration, where more and more people join alternatives with every bad decision the company makes