I haven’t been on NVIDIA for a while so i couldn’t tell for sure. I know that nvidia raytracing works on linux, but I’m not sure how it goes with the open drivers. If the noveau performance and stability is still somewhat lacking in general, then if both open drivers and raytracing are important to you then AMD is still the better bet.
It can be really bad for the industry if ARM is both a producer of chips and the gatekeeper within the ARM ecosystem. I don’t know if there are laws against this or loopholes through them, but what is going to prevent them from just withholding license or technologies to push competition out?