They require a lot of driver work to get everything working. Many of their chips for example only support h264 hardware decoding at the moment, although they would be capable of h265 as well. Another example would be the PineTab 2, which now after a few years has working wifi and an alpha bluetooth driver. Yes, it’s always getting better, but very slowly and it might well take another few years until you can just run a mainline kernel with full hardware functionality.
They require a lot of driver work to get everything working. Many of their chips for example only support h264 hardware decoding at the moment, although they would be capable of h265 as well. Another example would be the PineTab 2, which now after a few years has working wifi and an alpha bluetooth driver. Yes, it’s always getting better, but very slowly and it might well take another few years until you can just run a mainline kernel with full hardware functionality.