It’s because out of the box there’s often issues. For example, my setup with a 3080 booted to a black screen at login. Only futzing in the command prompt via grub let me install the correct driver, and it’s been fine ever since then.
All drivers have to deal with fbdev and EFI DRM shenanigans and there’s no simple solution (if you insist on hiding boot messages behind pretty graphics, or having a graphical console, which most distros do unfortunately, God forbid you should kernel and system messages for 3 seconds).
Until the ancient fbdev stuff will finally be completely obsolete it’s all about compromise. Most often the distro will have a working default, in some corner cases it will backfire. Personally I set my console to text only so I don’t have to deal with any of this.
TLDR it can happen, and not necessarily on Nvidia.
