A big +1 from me!
This is a great point and should be addressed ASAP, it’s really essential to get these official drivers from AMD, NVIDIA and Intel available from official channels for users to easily install as fast as possible.
The built in driver manager is very easy to use but all that hard work on providing an easy to use GUI for a comfortable UX is lost when new Linux gamers are forced as one of their first experiences in switching to Linux to use the terminal to manually add PPAs just to install the latest NVIDIA drivers, because the drivers available for the driver manager are so far out of date.
And it is really important when these proprietary drivers perform magnitudes better, which is obviously the most important thing for new Linux gamers.
With gaming on Linux now starting to become a big thing, it’s really important to get this right. Steam Play is becoming a huge hit and drawing in lots of users and it’s really souring the experience of those new Linux users that one of the first things they discover is that the driver manager has outdated drivers by a mile and they need to go through the technical process of adding a PPA just to get the latest drivers.
There surely has to be a way to ensure the driver manager always has the absolute latest drivers available.