AMD cards are fine from a raw performance perspective, but Nvidia has built themselves a moat of software/hardware features like ray-tracing, video encoding, CUDA, DLSS, etc where AMD's equivalents have simply not been as good.
With their current generation of cards AMD has caught up on all of those things except CUDA, and Intel is in a similar spot now that they've had time to improve their drivers, so it's pretty easy now to buy a non-Nvidia card without feeling like you're giving anything up.
I have no experience of using it so I might be wrong but AMD has ROCm which has something called HIP that should be comparable to CUDA. I think it also has a way to automatically translate CUDA calls into HIP as well so it should work without the need to modify your code.
To quote "The Dude"; "Well ... ummm ... that's ... ahh ... just your opinion man". There are people who are successfully running it in production, but of course depending on your code, YMMV.
With their current generation of cards AMD has caught up on all of those things except CUDA, and Intel is in a similar spot now that they've had time to improve their drivers, so it's pretty easy now to buy a non-Nvidia card without feeling like you're giving anything up.