DualSense features, more extensive audio support

1. With the Dualshock 4/DualSense features already implemented into the game like lightbar and touchpad support, I'd love to see support for the DualSense's haptic feedback, or possibly even the adaptive triggers for things like drifting in the daytime levels or sprinting in the Werehog levels, if it's possible at all. I've seen adaptive triggers and haptics implemented with mods in games like Sonic Frontiers before, and the way the haptics work is the game sends a 4-channel quad audio signal separately to the controller, so that it plays over all the haptic motors, so it'd just be a matter of seeing if the game can work with that setup.

2. Would it be at all possible to expand audio rendering beyond 5.1 to stuff like 7.1, or even 5.1.2 (over 7.1 connections)/7.1.4, if the audio engine is malleable enough? Even just a built-in binaural headphone renderer could be nice.

The issue does not identify any files, tests, or entry points. Start by locating the existing DualShock 4/DualSense lightbar and touchpad support and the current 5.1 audio rendering path; the work would be complete only when the requested controller haptics or adaptive triggers and expanded audio options are clearly scoped and implemented.