Listen, I run Debian too. But I'm not going to get online and complain out X Y Z not working when I'm running a package from 3 years ago. Please, be for real.
No, it's stable, it's reliable, it's the solution to all of the problems I had on Arch, Fedora, and other rolling releases.
And again, Nvidia drivers work perfectly right out of the box on X11.
Wayland? That's a new problem.
We're talking about very new developments here. You're running years old packages. Okay? That's not going to work.
When you're running Debian, it's expected you're going to be 3-5 years behind the Linux userspace status quo. So it's absolutely fine you're on X11. I have a desktop on Bookworm running X11 on Nvidia - works great, I love it. I also have a very, very new laptop running Tumbleweed on Wayland and kernel 6.15. X really struggles with new hardware in a way Wayland does not. For me on that computer, Wayland is better in a plethora of ways. I am a bit forced to run a very new kernel and Mesa and all that due to running bleeding edge hardware.