Yep, I've managed to make it work with a few code-43 errors on windows 10 (resolved by upgrading to 11 and making sure the beta drivers were installed). It seems to be a case of 3, and possibly 2 since I only have the one VM I haven't tested. But I can get plex and jellyfin hardware encoding on the ARC, though it does require a monitor to be connected from what I can tell. Possibly, an HDMI dummy plug would work.