Yes. I ran it for a bake off ~2 years ago. At the time, the code in linux was pretty raw, and I had to fix a bug in their SW kTLS that caused data corruption that was visible to clients. So I worry that it was not in frequent use at the time, though it may be now.
My understanding is that they don't do 0-copy inline ktls, but I could be wrong about that.
Genuinely curious on where u see state of art when it comes to Linux.