I really hope AMD cleans up and invests some money into their software stack. Granted it's really hard to catch up to Nvidia, but I think it's doable in ~5 years. The barrier to entry into rocm compared to cuda is pretty high, and even accounting for the fact that things got better in the last years. AMD has potent hardware for AI/ML (see instinct), they just don't have it in the consumer space. However one of the key factors of getting adoption in the consumer space is the fore-mentioned software stack, which I recall was a pain to setup. The fact that they're going FOSS for rocm shows promise in this regard.
In current state Nvidia has no competition, and you buy AMD only because you hate Nvidia, not because it's better. I had tons of AMD cards my first being ATI 9000 but if you want to do more than game the hassle is not worth it. My last AMD was Radeon VII, once I got a bit serious into Blender there's just no comparison, even with enterprise drivers the crashes, random issues and slowness comparatively is just not worth it. What took me 3 minutes to render on Radeon VII takes 10s on 3090 Ti, StableDiffusion renders take 5-6s without any hassle playing with rocm, gaming is also no comparison with RTX (I don't even use DLSS). Fun fact I sold my RVII after 3 years and added $500 for a new 3090 Ti. Nvidia sux for their business practices but technically they dominate because they invested in software really early on and established themselves with Cuda, OptiX, RTX, DLSS. Older AMD cards are nice for hackintosh if you're into that though, Apple dropped Nvidia hard. Also the Linux driver blob thing if you want to be a purist, but IIRC it's supposedly changing (sorry don't have a source right now).
