Doing research for potential macOS qemu/kvm setup

Set up passthrough for a Gigabyte Geforce Gtx 1070 on my arch linux host. Looking foward to install a macOS qemu/vfio kvm using my passthrough GPU. I never used mac OS and don't know anything about driver support.

1. Can anyobe help me in my research if i can get driver support for my GPU for catalina.

2. I see mojave has nvidia support. Does it work for all nvidia GPUs or just a whitelist? What states are the drivers in?

3. If i install mojave will i be able to use services to their full extent (Appstore, Apps, Apple services... idk) since i am not running catalina?

4. I see some people here running catalina using nvidia GPUs. Is that working for the latest version just specific ones?

Thanks in advance for your help!