I think it depends on the card model but overall the Nvidia drivers and CUDA software work great. Nvidia even provide Linux support for the latest RTX cards.

I think it depends on the card model but overall the Nvidia drivers and CUDA software work great. Nvidia even provide Linux support for the latest RTX cards. The biggest problem I had was installing the latest proprietary drivers because the ones Ubuntu provide are lagging behind. Sometimes you need to do this via the console.