I see the latest—580, 590, 595—available (scroll to bottom):
* https://packages.ubuntu.com/search?keywords=nvidia-dkms
Am I missing something?
They have been working on a custom Desktop Environment which sadly still isn't very stable yet. Promising development, but putting me off of using Pop for a while.
Ubuntu 24.04 currently comes with 590, which is the most recent working driver.
Anyway, the main issue with Debian, Ubuntu, and Nvidia is about licensing. GNU/Linux is free software, and Nvidia drivers are not. Loading a non-free driver is known as “Tainting the Kernel”.
https://wiki.debian.org/NvidiaGraphicsDrivers
The information on their wiki may be a year out of date. But the principles still apply.