14.2 Hardware Encoding and HDR?

After a little bit of driver troubleshooting I got hardware encoding working for h264 files on my PC. I'm currently working on a project with an HDR deliverable. I'm assuming it doesn't work with an HDR export? I wanted to see if anybody else had definitive knowledge about it one way or the other. I am assuming the answer is no - and I'm seeing that it switches off when I go to a High 10 or Main 10 profile, but I wanted to double check because I was having a bunch of finnicky issues while testing different drivers.

Thanks!