A lot of them sound pretty close. Sleep for example is something they know how to get working, all that’s left is someone to come up with a plan to integrate it nicely in to the Linux kernel in a way that isn’t copy pasting the existing system and changing the values that are different on Mac.
Speakers also do work but they are disabled by default so a bug in the current implementation doesn’t blow up the hardware.
And a whole set of major features will be supported as soon as the thunderbolt driver is done which I’ve heard is in progress.
The touchbar, fingerprint reader, and camera are things I wouldn’t hold my breath for.