Im on the tinker board libreelec train also lol. It seems to be pretty stable but there is no acceleration. It is much smoother and the contrast is better then the pi 3 (I also have pi's). I have tried most of the os builds out there and for kodi the Libreelec one does seem to be the stablest. the Debian Linux has acceleration but not so stable. I was trying to find a way to install vlc player or something that will install the drivers and what not to get acceleration like the Debian builds in libreelec but you cant apt-get in libreelec. was going to mess with the config files and see what can be done that way. maybe manually put the files in and have the config xml execute them so they are running in the background. or mess with kernel and see what I can do. its gotta be possible.