Light buzzing sound on fan

Hello everyone, my Framework’s cpu fan makes a light buzzing noise whenever it is on. I contacted support over this and they said they couldn’t hear anything, however I think they might have missed it because it is a little hard to hear in the videos I sent them. Is anyone else experiencing this, or can someone confirm whether or not this is normal?

I don’t necessarily mind the noise, just checking to make sure it’s normal and nothing’s wrong. Thanks for the help