May I ask why you have such an amazing machine, and two nice graphics cards? Feel free to tell me it's none of my business, it's just very interesting to me :-)
Career dev who had the cash and wanted to experiment with anything that can be done concurrently, such as in my language of choice lately, which features high concurrency (https://elixir-lang.org/) or these LLM's, or anything else that can be done in massively parallel fashion (which is, perhaps surprisingly, only a minority of possible computer work, but it still means I can run many apps without much slowdown!)
I originally had 2 2080ti's to experiment also with virtio/proxmox (you need 1 for the host and 1 for any VM you run). I never got that running successfully at the time, but then Proton got really good (I mainly just wanted to run windows games fast in a VM, but that circumvented that). Later on I upgraded one of them to a 3080ti.
