I changed the fans on my 24-port switch and it reduced the noise by about ~10 dB (from 55 to 45). It is not that much noise initially, but since it is in my office right back to me, I want it to be the quietest possible.
I’m aware that this solution is correct for the home office, but I think the main use case for 24 and 48 ports switch is in a server rack in a cooled room, not in the main room where everyone is working. So I understand the use case, but if it is possible to make it quiet, it would be a huge game changer for many of us.