Does it work on the deck without using an external controller? This sort of thing is difficult to test due to not having the hardware, but I know we have had issues before when multiple controllers are connected.
Additionally, does that controller work when running the game not on a steam deck, i.e. on a different computer?
I have only a Steam Deck so I wanted to test on someone else's pc before responding. The Logitech controller worked perfectly on their Windows 10 laptop. I wasn't running through the itch client there but I doubt that made a difference.
On the Deck, if I launch Revamped without the external controller attached, the Deck's built in controls are still behaving wrongly the same as the external controller does. It's like that regardless of whether the Deck is docked when Revamped is launched or whether the Deck is not connected to anything else.
I just figured something out. I haven't been using the Deck on the go lately so I'm always in desktop mode.
I tried switching to to game mode (it's a more game console like mode if you aren't familiar with Deck terminology) and running Revamped that way. And the Logitech controller worked. After switching back to desktop mode to double check, controller won't work again.
That is strange. All other games I've been running through the itch client have been controlling the same whether in game mode or desktop mode. It's odd that in Revamped controllers won't work properly in desktop mode when they do in game mode.
Unfortunately it's also pretty inconvenient, because game mode doesn't let you have a browser or Discord open in the background. Or anything else really. If you aren't using the Deck on the go then being forced to use game mode for something is a real drawback.
The only other time I've seen a difference in a game between desktop vs game mode is there's two games I have (Steam games, not itch ones) that for some reason won't launch in desktop mode even though they run fine in game mode.
Anyway, long story short: If someone's going to help test I can give some details that will help replicate everything.
I'm running Revamped through the itch.io client in Desktop mode. I'm launching the itch client using Lutris (through a shortcut in Steam created by Lutris). I remember that the itch client wasn't running on Steam Deck until I started running it through Lutris. And of course controllers aren't working right in desktop mode, whether external or the Deck's own controls.
That should replicate everything.
One thing I noticed while testing in game mode is that the default Revamped control scheme doesn't let you change the sensitivity of looking around. Pressing the pencil icon to edit either of the two default control schemes does nothing, so there's no way to change it.
That can be gotten around by making a new control scheme set to fps and adjusting the analog look sensitivity there. But having to to make a new control scheme to do that is a bit silly.