As someone who’s really into gaming and gives NVIDIA on Linux a try now and then, the one thing that really bugs me is DLDSR isn’t available at all, nor is plain, non AI DSR. The latter isn’t hard to replicate, but I miss the extra bang for your buck of the DL variant.
Granted, mine is a very niche use case but I rely on it a lot since it works great on older titles or ones with bad or no native AA and such.