Nvidia driver

I have a Linux desktop using Debian Bullseye.

While doing my monthly Debian upgrades (apt-get upgrade),  I received the
following
message:

"This system has a graphics card which is no longer handled by the NVIDIA
driver (package nvidia-driver). You may wish to keep the package installed
- for instance to drive some other card - but the card with the following
chipset won't be usable:

2b:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK208B

[GeForce GT 710] [10de:128b] (rev a1)


The above card requires either the non-free legacy NVIDIA driver (package
nvidia-tesla-470-driver) or the free Nouveau driver (package
xserver-xorg-video-nouveau).


Use the update-glx command to switch between different installed drivers.


Before the Nouveau driver can be used you must remove NVIDIA configuration
from xorg.conf (and xorg.conf.d/).

The system waited for a reply to:

Configuring nvidia-legacy-check ├────────────┐
         │ │
         │ Install NVIDIA driver despite unsupported graphics card? │

         │ │
         │ <Yes> <No> │        "

I answered NO.

The following messages were then received :-


Preparing to unpack
.../36-xserver-xorg-legacy_2%3a1.20.11-1+deb11u18_amd64.deb ...
Unpacking xserver-xorg-legacy (2:1.20.11-1+deb11u18) over
(2:1.20.11-1+deb11u17) ...
Preparing to unpack
.../37-xserver-xorg-core_2%3a1.20.11-1+deb11u18_amd64.deb ...
Unpacking xserver-xorg-core (2:1.20.11-1+deb11u18) over
(2:1.20.11-1+deb11u17) ...
Errors were encountered while processing:
 /tmp/apt-dpkg-install-yQN9uZ/03-nvidia-legacy-check_535.309.01-0+deb11u1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
W: Operation was interrupted before it could finish
root@piglit:/home/joanna#

What does this mean and what should I do ?

Further, Google suggests the use of the legacy Nvidia driver. Google also
suggests the following before installing the legacy Nvidia driver.

Install the correct kernel headers for your active system kernel:

apt install linux-headers-$(uname -r)


I haven't done this as I don't know if it's correct and what it does or
even if the command needs to be revised
at all for my Debian system.

After this the driver installation would be done followed by a reboot. But
I'm really anxious about that last step
in case I can't get my system back.....

Any suggestions please as to how to solve the above problem ?