@VineyardVine - The unfortunate part is that there isn’t any DS4 to Xbox controller mapper for macOS (that I know of at least). It’s a pretty common search on the internet and I still haven’t found a solution.
There’s this thread from the past that suggests that using a DS4 controller did function with Roblox at one point. At the time he posted it, @Usering was using a Mac(Book).
I’m not sure when or where Roblox dropped support for DS4 controllers but there are Reddit topics that suggest that there was in fact support for DS4 controllers.