I haven't encountered any of the problems listed.
I was installing macOS using the
@CaseySJ port map and found one USB-drive port that allowed me to install and exit to the desktop.
Then I created my own ports map and it should be attached in my EFI. This affects both the USB ports themselves and the Bluetooth operation, since Bluetooth is also a USB device.
I do not remember, but I think I checked the operation of the Ethernet. it works properly, but it's probably worth going into the settings and setting it to full duplex 1000 megabits instead of auto.
As for the audio, I did not check the operation of the built-in card at all, since this hack was going to work with sound and the Thunderbolt 3 card.
I still have a problem with the table for this Thunderbolt map. My knowledge is not enough to solve it myself. Maybe someone will try to help me one day.