Are gigabit usb3 adapters supported?

I guess.....not, in this forum post, also I have seen cases from Reddit, people using this dongle in general getting some problems with ASIX88179 (I managed to get one free from colleague so I will see how it goes), right now the better USB one is still the Realtek 8153, or if price difference not that much get a Realtek 8156 (2.5G) then you can reuse on PC or somewhere else later (lots of people using Realtek 8156 with Synology NAS so this has a proven track record)