> Just give me back old reliable 3.5mm jack
https://www.apple.com/shop/product/MNHF2AM/A/earpods-with-35...
> What can be done about it? Also, any headphones that let you replace batteries?
One thing you can do is getting something like the UTWS1 from FiiO [1], which is then connected to any IEM that has an MMCX connector. This is not cheap, and is probably not going to give you the best battery life and/or sound quality, but when the battery dies or you get tired of it you still have a perfectly functional set of headphones.