You asked
Can I adapt the zeiss milvus 35mm f 2 to canon rf?
I can't confirm that from the site. The Zeiss Milvus 35mm f/2 is listed for Canon EF and Nikon F mounts, and I don't have anything on an RF adapter for it.
What I can say is that mirrorless mounts are shallow, so adapting older manual-focus lenses is usually easy and cheap. That's the idea behind the adapters section on the lenses page. This lens is manual focus with no stabilisation, so you'd be focusing by hand either way.
Before you buy anything, check that the adapter you're considering takes an EF lens onto an RF body, and confirm it with the adapter maker. If you tell me what you want to shoot, I can point you to a lens that suits it.
Written by Claude from this site's pages.