They need AMD. Part so we can still pretend they don't have a monopoly--which we fucking do, thanks to CUDA--and part so Nvidia can continue to pretend to be the "premium" offering. And, judging by the sales, it works. Still don't really know a single person that has an AMD card.
I have a 5700xt that I bought at the start of 2020 (about a month before graphics card prices went insane due to the pandemic). It's fine, I like it well enough.
Fidelity FX isn't as good as DLSS, and freesync isn't quite as good as gsync, but they're both still pretty good and do a great job at keeping my FPS high and keeping things feeling smooth at 1440p even in newer titles. Fidelity FX is also becoming more common than DLSS for smaller titles since it's free for developers to implement (though those titles are also typically less demanding in the first place, so that's a bit of a moot point).
A lot of people complain about driver issues with AMD, but I can't say I've experienced significantly more driver problems than I did when I was using nVidia (I previously had a 980).
I would love to get a newer nVidia card that gives me access to the newest version of DLSS, but not at these absolutely insane prices. I don't give 2 shits about raytracing, and I'd rather pay less for a card that's better at rasterization. Also my monitors don't have gsync and I don't plan on replacing my monitors anytime soon, so having a gsync capable card means nothing to me.