GPU passthrough success stories on FreeBSD?

Hi Everyone,

Wondering whether there are any GPU passthrough success stories with FreeBSD that you could share?

I'm currently building a desktop system based on Ubuntu and intend to use GPU passthrough on KVM. I need near-native performance and the ability to rapidly switch between operating systems. The latter requirement pretty much excludes ESXi. Would love to use FreeBSD or BSD derivative as a desktop system but if I can't get passthrough to work, that's a deal breaker for me.