Gpu Passtrough on Bazzite

Hello, I have a question. I am trying to set up a VM and I want to use my 3090 in it. The problem is that I don't know much about Gpu passtrough and how to set it up. Espetially not on Bazzite. I know that if I run "ujust setup-virtualization" and enable vfio it says that I'm on my own with gpu passtrough. But maybe someone here knows how to use it. If so, I would be happy if you could tell me