I still see people asking which distro to use, is it ok if they have an Nvidia card? How ready is Linux for a gamer? I have been 8 months now on Linux, it's about this hard to have an Nvidia card: click update. The way I switched was to populate the second m.2 slot on my MB and install Linux there, I chose Nobara, that way I had the fallback of Windows 10 if I had issues. Well, I still have Windows 10, it exists as a console with no internet access, it runs my Skyrim setup with it's 982 mods that I can't be arsed to move. Everything else is on Linux, it's the default and daily driver. Look close, you can see my system automatically updating OpenMW for me, quietly supporting my 260+ mod remaster of Morrowind. If you're wondering whether Linux is ready for gaming, yea, it is. Give it a try.
No it hasn't, Nvidia usability in Linux now is the same as it was 10-15 years ago, and that's sort of the problem. What do you think has improved since then? I remember ~18 years ago getting Nvidia to work with the proprietary drivers on my Mint was just a couple of clicks away and I could play oblivion and many other games that ran on Wine (and the very few natives we had) just fine. The majority of the Nvidia issues are self-inflicted, always have been, the problem is that because you have to use the proprietary drivers it's very easy to shoot yourself in the foot, and inexperienced people tend to do it very often, so my guess is that 10-15 years ago is when you started using Linux, and broke stuff with the Nvidia driver, nowadays you don't break that stuff and you think the driver has changed, when what has changed is you.
In the last 18 monts, they're enabled explicit sync, which was pretty much the turning point in making NVIDIA drivers/GPUs usable. On top of that, they've open sourced the kernel modules.
It's very very different to what it was even 2 years ago.