Ansys acquired Rocky & team from ESSS earlier this year, but we've been working with them for longer. As it's from a different development background the OS list is slightly different. It's also gpu focussed with a cpu option so OS requirements are a little different.
Fluent came from UNIX, and then moved onto LINUX and Windows.
There may be a library you can port, otherwise keep an eye on the release notes as I'd be very surprised if more OS support wasn't in the plan. Note, I don't know about the plan!
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