It's been out much longer than the Lichee Console 4A. They started taking orders for the Roma in around October 2022, and delivered them in October 2023 I think.
If a tablet with a keyboard/touchpad dock counts (i.e. CPU in the screen, not in the keyboard part) then the Pine64 PineTab-V has been shipping since July 2023, several months before the Roma. It has exactly the same CPU as the Roma, but is $210 with 8 GB RAM and 128 GB eMMC (or $160 with half the storage).