Two things made my WASD Keyboards's blue switches much quieter:
- Installing the little rubber O rings around the base of each switch so that it's not super loud if I do happen to bottom out.
- Replacing the ABS keycaps with PBT. I was genuinely surprised at the difference that made. It's not subtle in the least.
I still probably wouldn't use it in a coworking environment because I don't hate my colleagues.