Best way to handle this is communicate. Last office mate I had asked if he could bring his in, and since it was something that's never bothered me I was totally fine with it... I brought mine in shortly after ;)
The dampening rings don't help much either.
I use a mechanical, as the Apple keyboards gave me RSI. My pain has gone away since, and I've not had any complaints about noise. (Much of my office uses mechanical, and most of us do it for our wrists.)
I use some of the quieter switches; I'm not in mechanical for the noise, but for the feel & layout. That said, it's about on-par noise wise with an Apple keyboard, but people think mechanical == noise.
At university, I shared an office with a student who made so much noise typing that I could only stop and ponder with amazement. This guy typed like the keyboard was a piece of meat, and his hands were basting mops. Somehow, his fingers mashed out whole words and phrases as he dragged his paws across the keys.
It's a shared cultural thing unique to each company, no need to cast a blanket statement.
Nobody will be excessively interrupted/distracted by a quiet keyboard. The same is not true for the other direction.
At my last position, open office, a few people on my team complained about other members' loud buckling-spring-like keyboards. Since it was an open office and we were all complaining about noises well beyond some of the keyboards, like sales calls and constant conversations, it was somewhat moot and nothing was really done about it. But it definitely increased animosity within the team, it pays to be especially considerate of your neighbors, particularly ones you need to collaborate with.
On the other side of things, the sound of a door closing too strongly will ruin my concentration and put me in a mood.
The guy I sit next to uses a mechanical Logitech keyboard with their custom switches and I've never heard any complaints about that one, either.