Bluetooth sounds fine, but it can introduce latency that you wouldn’t experience with a direct connection. Which is fine for listening to music and even video calls are ok, but a minor proportion of the population working on music production will experience that latency. On a smartphone that’s a pretty rare use case, so it’s fine.
Batteries: I extended the life of my 2010 MacBook by swapping the battery and it was very easy. Apple is going to come out with kits for amateurs to do part changes themselves for the iPhone, where that part change will be harder (broken screen swap) than swapping out a MB battery.
Latency is extremely noticeable with some headphones for videos/games. My Bose QC buds are just completely useless for them. Other pairs I have are better but the Bose are music/call only headphones. Thanks for reminding me of that extra problem.
2010 MBP were far more repairable than the modern stuff. After that Apple started gluing down the batteries which required prying to remove.
Bluetooth is absolutely atrocious, every 2-way call over bluetooth is sampled down to absolute garbage because the meager bandwidth is halved and the codec in prehistoric
Batteries: I extended the life of my 2010 MacBook by swapping the battery and it was very easy. Apple is going to come out with kits for amateurs to do part changes themselves for the iPhone, where that part change will be harder (broken screen swap) than swapping out a MB battery.