Other features, like Thunderbolt, running displays over USB-C, the system's built-in microphone, and the Touch ID fingerprint sensors, remain non-functional.
Honestly mad respect to these Devs man. Gotta realise they're doing this stuff for free and they're not getting paid. If anyone hasn't checked out the Asahi Linux blog, do give it a read, it has done fascinating deep dives into Apple's hardware engineering.
Everything is reverse-engineered, and different people work on different stuff. It’s not like the resources devoted to OpenGL could be diverted to microphone support, that’s a completely different skill set.