Ubuntu – Can’t change display driver on Ubuntu 20.04

20.04driversnouveaunvidiaxorg

I recently installed 20.04 and I'm confused as I found this bug while changing my display drivers. While installing, I got my Nvidia drivers automatically installed, but they were buggy and had some fps drops (less than 19.10, but still uncomfortable) so I decided to choose Nouveau X.org ones. Apparently it worked, I rebooted my laptop and then I see this, please check the screenshot:

It says "Using manually installed drivers" and at the end I don't know which one I'm using. Is this a bug? What can I do to clean select X.org Nouveau drivers and not Nvidia ones?

00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile)
DeviceName:  Onboard IGD
Subsystem: Dell UHD Graphics 630 (Mobile)
Kernel driver in use: i915
--
01:00.0 VGA compatible controller: NVIDIA Corporation GP106M [GeForce GTX 1060 Mobile] (rev a1)
Subsystem: Dell GP106M [GeForce GTX 1060 Mobile]
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia


Also another clarification, I did ubuntu-drivers autoinstall and now everything seems ok, now I'm able to choose again and Nvidia Drivers are in use, but the output of the command is confusing me as it shows 4 kernel modules.

sudo apt purge 'nvidia.*'

But if you installed Nvidia drivers without using apt, e.g. by running a .run file, this won't work.