I've got a bambu A1 and noise is not a problem at all, I had to put that concrete block underneath it or it'd destroy the cheap coffee table it was standing on due to vibrations :)
Ah yeah that tracks. My enclosed Prusa MK4 is on a big stud-mounted shelf and my huge enclosed Prusa XL is on top of a heavy server rack with locked castors on a concrete floor. Vibration is not noticeable in either case.
