In my opinion the vendor supplied OS distros are to be taken as just a starting point, nothing to rely on more than the time needed for the port of one of the w

In my opinion the vendor supplied OS distros are to be taken as just a starting point, nothing to rely on more than the time needed for the port of one of the well established distros (Armbian, DietPI, stock, etc) to appear for a given board, which often happens quite fast when driver blobs and lack of documentation don't get in the way (the RK3308 used here is well supported along the WiFi chip). My usual approach when looking for a board is to check first if there's some support from the above distros, or wait. It may seem odd, but it's just the same reasoning we're used to in the PC world translated to the embedded world: whoever would expect Gigabyte, Asus, etc. to create and supply the Linux distribution that runs on their PC mainboard?