True wireless earbuds don't necessarily have to end up as electronic waste when their batteries reach the end of their lifespan. Fairphone demonstrates this with the Fairbuds 2, whose batteries can be easily replaced. The earbuds also offer active noise cancellation and support for Sony LDAC.
I’ve never had to think about it on iOS, macOS, or Windows. The video just holds for a few frames until the audio buffer catches up to it and then it resumes playing the video frames.