Hello, I installed 14.4 as well as you, but I also encountered the same USB problem as you. I tried to customize usb, but failed.
But my voice card driver uses applealc 1.36 and specifies ID 22, so that the speaker and microphone can work normally, but the headset is invalid, only the noise, I can not sleep and wake up normally when using the universal driver voodhda. But applealc seems to affect the frequency of the cpu. Frequency conversion options will be maintained at very high frequencies, which is quite electricity-intensive.
Then you encounter the problem of touchpad and touch screen. I use the latest touchpad to drive vodool2c, which can be normally touched and gestured, including the screen. You can try it.
Finally, I hope you can continue to try to improve the USB interface.
In addition, my Appstore is not usable. I failed in customizing the USB network card to en0, maybe something else.
PS: I'm Chinese. I use translation software to type these words. If you don't understand some of them, please forgive me.