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 wouldn’t miss the audio jack, if phones had two usb-c ports, one for charging and one for audio. But all adapter I tried that allowed charging the phone while listening to audio where very flimsy and/or unhandy.
I just would like not every device to have is own built-in or custom battery. Them being changeable is good, but I would also love if we start having a smaller set of standardized formats.