Post installation

I'm currently running Drupal 9.5.11 and wish to upgrade to version 10. So, I downloaded and installed the Drupal Upgrade Status Module. After doing this, I noticed when I went to configure it at Extend > Administration > Upgrade Status > Configure this particular page was not rendering properly but renders as shown in this linked image. 

Can I get a vote for
 

  Circular reference detected for service "Drupal\Core\Logger\LoggerChannelFactoryInterface", path: "default_content.exporter -> default_content.content
  _file_storage -> file_system -> logger.channel.file -> Drupal\Core\Logger\LoggerChannelFactoryInterface -> Drupal\Core\Logger\LoggerChannelFactoryInte
  rface".

as the most useless fatal error message that completely crashed your system?

There is Contact Webform in a Block on all pages. Anonymous users can save a Drafts. However, different pages get its own version of the Draft.

How to make one Webform have the same Draft for the entire site?

I'm so tired of Drupal 8 composer's problem, drupal/console problems and performance issue. Is there any way to downgrade Drupal 8 to 7?

Or maybe I can export Drupal 8 nodes somehow and import them in Drupal 7?

Drupal 8 seems to be heavy, hard to manage and overcomplicated for me. I don't want migrate to Drupal 10, composer is not for me.

Thanks

I have a Drupal website that's gone from version 4 or 5 up to now 10.1.6. The transition from 7 to 9 introduced a problem with new forum content which continues with 10. I can create new forum content, and those nodes show up in the content list, but they don't show up in the forums.

On a 10.1.6 test site, I deleted all forum content and terms, uninstalled the forum module, cleared caches, reinstalled the forum module, and created a new forum topic. Same result. It shows on the content list but not in the forums.

Anyone know where this url with the http prefix is set?  I can't find it in my settings file or in any of the config pages.