Thanks for the feedback, I’d still be interested in a summary of the value-added stuff (maybe that could be part of the official docs?) even if for everyone it’s a bit different, I think it’s a reasonable query when comparing to regular arch or arch+bare-bones-simple-installer.
OTOH, I can always check over the extra packages individually, too.
So far I noticed
blender dev?
As far as I know, during install there are extra packages in the ‘base + other packages’ that can be kept or deselected, and running paclist -h endeavouros would list all packages installed on your system from the repo. 
The EOS website says it best:
With the exception for our in-house developed reflector-auto, eos-welcome, a kernel manager and the eos-update-notifier, all the packages are directly installed from the Arch repos or the AUR, so there are no customized or modified packages coming from our own repo. We want to stay as close to Archlinux as possible.
Yeah, that. And oh, various desktops to chose from. Rest is pure Arch.
Just for clarity - here they are:
┌05:33:56 WD= [~]
└───freebird@nest ─▶$ paclist endeavouros
akm 2.5.3-1
arc-x-icons-theme 2.1-3
downgrade 8.1.1-1
endeavouros-keyring 1-4
endeavouros-mirrorlist 3.1-1
endeavouros-theming 6.2-1
endeavouros-xfce4-terminal-colors 2-1
eos-bash-shared 1.2.14-1
eos-log-tool 1.4-1
eos-update-notifier 1.8.8-1
grub-tools 1.4.4-1
grub2-theme-endeavouros 20200919-1
inxi 3.1.07-1
mkinitcpio-openswap 0.1.0-3
paper-icon-theme 1.5.0-2
reflector-simple 1.4-1
welcome 3.4.36-1
yay 10.0.4-1
You’re missing a few. The complete list is:
akm
arc-x-icons-theme
downgrade
endeavouros-keyring
endeavouros-mirrorlist
endeavouros-theming
endeavouros-xfce4-terminal-colors
eos-base
eos-bash-shared
eos-hooks
eos-log-tool
eos-rankmirrors
eos-update-notifier
grub-tools
grub2-theme-endeavouros
inxi
keyserver-rank
mkinitcpio-openswap
nvidia-installer
nvidia-installer-db
nvidia-installer-dkms
pahis
paper-icon-theme
reflector-auto
reflector-simple
welcome
yay
The list was generated with
pacman -Sl endeavouros | cut -d' ' -f2
I thought paclist would do better than that! No man entry though - so I guess it isn’t a surprise. I wonder what it is doing in there with its selections though! I just didn’t want to go to the git list for the quick post I was doing…
paclist endeavouros
shows you the packages you have installed on your machine, not the contents of the repos.
pacman -Sl "$@" | awk '/\[.*[[:alpha:]]+]$/ {print $2,$3}; /\[.*[[:digit:]]+]$/ {print $2,substr($NF, 1, length($NF) - 1)}'
pacman -Sl endeavouros
Will give you a list of Endeavour specific packages and which you have installed. There are not many (27?).
Some are theme related, some are maintenance ease of life, some are installation related (ie nvidia), a few are separately maintained AUR packages … bottom line is Endeavour is very close to Arch, and nothing like the bloated mess Manjaro has evolved into.
Friendly reminder 
And. . . . This stellar community. What else could you need??
For me, it is not what EndeavourOS have after install that make me use it. But installing Arch without RTFM is.(Btw is my grammar correct?)
what wrong with " Replace The Failure Mindset " 
Interestingly enough, Archway installs I have done lately seem to be picking up the endeavouros repo - I miss some of the goodies when I don’t have them! ( such as su_c_wrapper and checkupdatesext and sometimes Welcome for example) Sure I could live without them - but why?
Have you tried installing Arch? That byitself is a barrier to entry for me. EnOS takes care of that and has an absolutely wonderful community.
Think of it more as a hurdle - it seems deliberately to be set up to FORCE you read the wiki instructions carefully (including following links - even if you don’t yet know WHY they need to be followed) so as to prove you can find the trees no matter HOW dense the forest.
That said, I have done enough of them that I don’t really see the need to do more!
Would atleast encourage to try in vbox. It can atleast give some understanding 
but is always own choce to do also.
I really love EndeavourOS hooks btw 
What are they and when would you use them? (I tried searching online but couldn’t find a summary of this).
This may help you.