In this decade, focusing solely on OS hardware drivers is a mistake when evaluating current GPU offerings ... depending on your intended use.

For gaming and video manipulation these are still a factor (and in general pretty solid for both companies, Wayland issues notwithstanding). If that's all you want, there are many good Internet sites that will help you find the current (and ever-changing) sweet spot that balances budget and performance. (Here's my favourite pricing site, and a good at-a-glance comparison of benchmarks.) However, nVidia hasn't become one of the world's most valuable companies because its cards run Davinci Resolve so well. GPUs these days are increasingly being used directly for apps from crypto mining to AI and beyond, to the point where some of the most expensive GPU cards are sold without display connectors.

Increasingly, apps use direct access to GPUs using toolkits such as AMD's ROCm and nVidia's CUDA, and in this realm nVidia has a massive head start. AMD is making good progress, but if you're buying a card based on possible future AI and non-raster-video uses, it's still way behind. I have one system with an RX6600 and another with an RTX3060; they're pretty similar for day-to-day use but I have encountered many apps and platforms that just don't support AMD GPUs the way they do the nVideas ... if at all.