In my experience, most of the spaces in libraries where I work are still pretty quiet. But there's a pretty strong cultural expectation that you don't talk on the phone or have more than short low volume exchanges with others--even aside from any specific rules.

I agree music seems more than a bit much but a workplace is somewhere many people have conversations and have to make and take calls. I don't think I'd be very inclined to spend money on a space where I had to try to find a room every time I was on a phone call or wanted to talk with someone.

I'm willing to restrict talking if I'm hanging out for free in a library. Not so much if I'm paying for a desk. One should of course have consideration for others but, for many, a big part of their job is talking on the phone.