Somehow, I think this was in the making long before the Harman acquisition. And, if they managed to do this in a matter of weeks … that’s impressive.
Maybe this is in the pipeline? We don’t know. What we do know is that Roon supports Linux, macOS and Windows, and there’s also ROCK. AFAIK, the current Nucleus and Nucleus+ models are still available for purchase (at least while stocks last.) This seems to cover a broad range of users.