How does the vent trim break?

I've seen many posts with this vent broken, but I'm curious to how? Was something replaced where they had to remove it? I just bought a 2009 and I didn't ask but I'm curious if some work was done where it had to be removed

I've seen many posts with this vent broken, but I'm curious to how? Was something replaced where they had to remove it? I just bought a 2009 and I didn't ask but I'm curious if some work was done where it had to be removed