Installing Drupal

Greetings,

Last I developed with Drupal was on the v8.x series, latest, ending.

Now Drupal v11.4.x series is current / stable.

I understand to do the installation deployment of the Drupal code and modules, it is required to use Composer.

I used Drush in the past to run the Drupal cron. Actually I preferred to run Drupal cron via Drush as it had verbose output invoked that way... which I would scrape and retain in daily log files. Running Drupal cron via wget gave no verbose output of what was happening.

My fresh DrupalCMS 11.4.5. wil not work because Composer refuses to get loaded in the Status Report, making it unable to use the UI to extend modules. 

Status report, as a result of readiness check: (/web/admin/reports/status#error)

i installed Drupal CMS fresh
The error messages tell me, i should stop thinking:

1. "Your site does not pass some readiness checks for automatic updates. It cannot be automatically updated until further action is performed.
rsync is not available."

One of the best parts of core drupal was the update workflow, but with "designer and makers in mind", it won't be anymore? Is rsync a module?

2. "An unsupported Composer plugin was detected.
symfony/runtime"

Came from old Drupal 5 to 7, started to dig into shell  (putty) up to installing D11, gave up with dependencies on some modules.
Website moved to cheap website-service.

Then i discovered Drupal CMS, "Update Drupal CMS? You don't!"
So, why are there version numbers?

Installed it, created content types, fixed the theme, chose some modules, like Block Content, installed them
"... unexpected error ..."

So, what's different or new, other than the installation method?
You have to be a programmer to fix Drupal, then and now.

I tried to install drumal cms and i get the following error. Just for the info , drupal core installs with no problem. Any ideas?