I'm feeling stupid to just post links ... .
The archlinux wiki is the 'unofficial linux docu': https://wiki.archlinux.org/title/Backlight
Or maybe one of these: https://bbs.archlinux.org/viewtopic.php?id=213461 , https://forums.linuxmint.com/viewtopic.php?t=158087

That depends on your network configuration.

Some cases:
(a) static network settings in /etc/network/interfaces; then /etc/resolv.conf sets dns. Just edit to your needs.
Dynamic:
(b) plain dhcp: you can superseed (overwrite) the routers dns "suggestion".
(c) "network managers" there is a zoo of different tools. e.g. NetworkManager, connman, resolvconf, and what not; all with different gui and console tools for making changes.
Addional hardware:
(d) have a personal router - not the one from the Internet Service Provider. Set it up to your needs and any client will have the wanted dns server automatically.

a,b is good for static LAN, c for wireless-LAN or more dynamic setups (and for static LAN too, if you like).

Edit: Some typo. And the list is not complete, of course.

Nice tools, zapper!
Thanks for mentioning

The error messages don't ring a bell.
Are linux-headers-amd64 and firmware-nvidia installed? (assuming yes, but ...)

Which version of 'nvidia-driver' is installed for your card? 535, 525, 470, 418, 390 ? Maybe something version dependant.
The labtop might have "optimus" architecture, where you can switch between nvidia and intel graphics. This is needs special setup, I don't know at all.

Edit:
nvidia_current_open : Does this refer to nvidias new open source drivers (for RTX2000 and later)?

Hm, that is strange.
My std / non-customised daedalus install has the same 'sources.list' and 'nouveau' graphics driver too.

# apt-get update
# apt-get dist-upgrade
# apt-get install nvidia-detect
(...)
Unpacking nvidia-detect (535.216.01-1~deb12u1) ...
Setting up nvidia-detect (535.216.01-1~deb12u1) ...

devuan pkginfo says it's available on all distros. https://pkginfo.devuan.org/cgi-bin/poli … t&x=submit

Something in '/etc/apt/preferences.d/' ?
'apt policy' may give a hint.

Out of ideas by now.

I suggest to insert some filters

apt list | \
grep 'installed' | grep -v -e 'installed,local' -e 'installed,automatic' -e ^lib | \
awk -F"/" '{ print $1 }'  > package-list

^lib : removes all libraries (should be installed automatically), but also "libreoffice".
'installed,local' : packages not in the current sources.list. I would want to check those.

Edit:
Forgot to mention: To apply to a new installation

apt-get install $(cat package-list| tr -d '\n')

tr -d '\n' deletes end-of-line characters.

I like fsmithred's 'dpkg --get-selections' version; it includes de-installation of packages, which it not covered here.

Maybe

apt-get install blueman pipewire-pulse

Yes, this is also something pulseaudio ... .

Wifi and bluetooth are sharing the 2.4 GHz band. Using one chip for both is an option.

"Blacklisting nouveau" and "no proprietary nvidia driver installed" means the system uses a generic VESA or VGA drive (1024x768).

To install the proprieatary nvidia driver - as far as I remember:

apt-get install firmware-nvidia-graphics nvidia-driver linux-image-amd64 linux-headers-amd64

The full kernel source is not needed to compile the nvidia driver, headers are sufficient. If you want kernel updates, install "linux-image-amd64", not a specific version.
It needs a "xorg.conf" to function (create one with e.g. "nvidia-xconfig"; maybe to install additionally).

Just to mention:
In my cases, the nouveau driver just worked without any config (no acceleration of course).
And my computer spends some seconds with "Waiting udevd to be populated" too (no idea why).

ChatGPT Just Solved Chess

https://www.youtube.com/watch?v=rSCNW1OCk_M

Was a new kernel installed?
Boot the previous one again (grub menue: advanced options ... -> ). Does the problem remain?

Or anything suspicious in apt's log?
/var/log/apt/term.log or /var/log/apt/history.log

Invest 20 bugs in a new SSD. Runnung devuan/debian using a 2 GB parftiion can be quite masochistic these days. Anyway, not my decision.

If the current kernel works, you may deinstall the previous (now backup) kernel. This frees about 250 MB of kernel modules and has to be repeated after a kernel upgrade.
You may use apt with "--no-install-recommends".

Regards