There are no CPU specific drivers.
What you do want is the AMD Chipset drivers for your motherboard.
If you have an X570 Motherboard then you should download and install the AMD X570 Chipset drivers.
If you have a different chipset on your motherboard then download the AMD chipset drivers for your specific chipset (B550, X470, B450, etc.).
I questioned this too when I first got my 5600X and sent a request to AMD to ask why it wasnt listed, (when all the other 5000 series cpu's are listed.) Apparently there was a problem with Ryzen Master and the 5600X when it was first released, they said they would fix the bug, (which I believe they did,) and were supposed to update the support page to include the 5600X but they never did. You can download Ryzen Master separately though.