Anecodally I've bought thousands of Radeons and Geforces over the last 17 years as an enterprise system-integrator and have troubleshot hardware faults and driver problems with both lines of card across (quick math) 6,100,000 end-user hours of use.
I can say with confidence that both AMD and Nvidia drivers have been periodically fine and also terrible, and that if there's any real difference between them, it's that Nvidia cards have fewer issues but they tend to be more severe and remain unfixed for much longer. Quite often I will be able to disable a workaround on AMD cards within a few months as it's been patched. With Nvidia you basically get a patch from the software developer instead and if you don't get that the workaround you have to use for that application is permanent.
Realistically, I dislike the dated/redundant Nvidia control panel with a lack of fan/clock tuning and monitoring, no controls whatsoever for the encoder, and no GPU-level screen-capture utility. I know third-party solutions exist because I have to install them on Nvidia systems, but it's just irritating that noisy people on the internet always harps on about AMD drivers being crap when Nvidia drivers barely even do anything that Windows display settings can't also control. There are also minor, reproducible bugs in the Nvidia control panel that haven't been fixed after 15 years, which is just pathetic....