Except the Nvidia support. I need the actual proprietary driver for cuda

As far as I know, the open-source driver supports CUDA now, as long as you’re using version 560 or above and the latest CUDA packages. https://developer.nvidia.com/blog/nvidia-transitions-fully-towards-open-source-gpu-kernel-modules/

We’ve been using the open-source driver with workstation-grade cards at my employer for a while. The open-source driver didn’t get full support for consumer-grade cards until version 560 which was only released around 6 months ago.