Running an i5 9600K / 2x Nvidia 2070 / 64GB RAM on 19.10 and I managed to get to a fairly stable configuration. The only pain point was and has always been Nvidia drivers and CUDA stability. I have yet to find a consistent way to install the driver and CUDA version you want and lock them. A couple of weeks ago I installed Wine which deleted my CUDA packages. For now it's stable enough for a few months until I need to reinstall or tinker with something but maybe someone has suggestions for improving stability.