PS5 Controller Support not working on PC

[Packetdancer]

I thought the FFXIVteam said they would be supporting PS5 products for the game? Game runs on the PS5 from what I heard but I guess that is just backwards compatibility mode.

So far as I know, that key there is "would be", as in there wasn't a specific date specified. So far as I know, yes, they will be supporting PS5 (and PS5 peripherals). But it wouldn't entirely surprise me if there wasn't official DualSense controller support until there's a proper, official PS5 native client (rather than just running the PS4 one in backwards compatibility mode).

As noted, though, swapping around the input IDs in the controller configuration should work in the meantime, though it will get reverted by various changes so may need to be periodically reapplied. The Steam overlay should work too, but there are a couple of gotchas... and if you don't have the 'Playstation Controller Configuration' option ticked—which you might only be able get to from the configuration screen in Big Picture mode—it will just fail to work at all.

(And I'm not 100% certain the current release build of Steam supports DualSense via the overlay, as opposed to the beta build channel of Steam which I can confirm does; I've tested with a DualSense and the beta builds. One of those two—the Playstation Controller Configuration option or the release-vs-beta builds—might be the underlying problem for Steam not mapping it for you.)