Some Firefox users noticed playback issues on YouTube for several months. These affected high resolution videos only, from 1080p and up. To make matters worse, no clear pattern could be identified.
Some videos played fine, others would stop abruptly when they ran out of buffer.
@FlashMobOfOne
Sort of, Chromium is maintained by Google, Brave and its users just sit atop the Goggle shitpile and help enable it to contine.
@Takumidesh