So, basically what I said. AMD has almost no advantages over Nvidia in areas other than gaming. Sure, there are some niche compute workloads that work 'good enough' on AMD, but the support for anything else is so bad that no serious business will bother. If you eventually scale out you'll have to use Nvidia anyway unless you can directly partner with AMD. Avoiding CUDA and Nvidia's ecosystem only gets you so far.

The open drivers you mentioned are the general-purpose ones, not really the ones you'd use in your compute containers, so it's not a real comparison. Yes, these ones are far more stable out of the box than Nvidia's like I said, but if you read the docs and have some experience, the Nvidia drivers are solid - they break if you use them for things they were not meant to do (such as gaming).