Solved: Unable to install driver for 4090 on Ubuntu 20.04: "nvidia-drm appears to alreasy be loaded in your kernel"

I installed the wrong driver for the 4090, and now I am unable to install a new one because whenever I attempt to run the installer I get the following error:
"An NVIDIA kernel module ‘nvidia-drm’ appears to already be
loaded in your kernel. This may be because it is in use
(for example, by an X server, a CUDA program, or the
NVIDIA Persistence Daemon), but this may also happen if
your kernel was configured without support for module
unloading. Please be sure to exit any programs that may
be using the GPU(s) before attempting to upgrade your
driver. If no GPU-based programs are running, you know
that your kernel supports module unloading, and you still
receive this message, then an error may have occurred that
has corrupted an NVIDIA kernel module’s usage count, for
which the simplest remedy is to reboot your computer. "

I managed to resolve this by installing the correct driver using apt install:
sudo apt install nvidia-driver-525

Are you able to use External monitor via both Type-C and HDMI ?
I am using ROG Strix G17, 7945hx + 4060, but Both Type-C and HDMI doesn’t detect external monitor.