Not really. Instead of dumping all the drivers into one repo, there's now a separate repo just for GPU drivers, which is just a staging area, before they get merged into the main repo.
If you ask "why"? It's like creating an extra folder so that your files are organized better.
As an end user, it's not going to change anything for us.
It does mean you are more likely to get eyeballs on your driver from other people doing graphics card driver work. That usually results in higher quality and a higher likelihood of catching issues.