That probably just means that they are testing that they are testing that platform in CI now, and are officially supporting it (taking bug reports into account, etc.).

This has been problematic for me after upgrading from 18.04 to 20.04. Every time I apt update cuda or some nvidia package my x server fails to start for several different reasons.

Just today I've already spent 30 minutes trying to start x with this latest cuda update. Too bad I can't switch back to the open source nouveau driver.

Coincidentally I was just looking at this after upgrading from 19.10 to 20.04 today -- basically, the version installed from Nvidia's old 18.04 repos work fine on 20.04.