Drupal 8.x

Currently investigating issues with upgrading D8.9.20 to D9. Running into a removal of drupal/ctools_block 3.4.0 while drupal/ctools 3.7.0.

For the record drupal/ctools_block is a submodule of drupal/ctools. Should the composer.json have replace/provide sections for its submodules?

Looked for documentation, couldn't find it, anyone knows where this is documented?

  [RuntimeException]
  Could not delete /mnt/c/Users/Sites/devdesktop/drupalDeadMeat/vendor/composer/a2f0f1bd/drupal-core-089417f/modules:

Also i can't run drupal anymore
Warning: require(C:\Users\Sites\devdesktop\drupalDeadMeat\vendor\composer/../symfony/polyfill-php70/bootstrap.php): failed to open stream: No such file or directory in

https://www.drupal.org/docs/upgrading-drupal/upgrading-from-drupal-8-to-...

Stuck at step3:

Your requirements could not be resolved to an installable set of packages.

Following the page

https://www.drupal.org/docs/upgrading-drupal/upgrade-using-drush

did 'composer require drush/drush'

With my shared host I cannot use composer and that is why I use composer in combination with CLI and Wampserver on my localhost. Updating Drupal core went smoothly in the past because I updated with composer on my localhost and then replaced Core and Vendor on my shared host.

I would like to upgrade from 8.9.20 to 9, but I can't.

The problem starts with updating Composer from version 1.10.19 to version 2. This also fails due to dependency issues.

I have a content type with an image field. This image field is just shown as teaser image with a view not at the node itself. Is there a possibility to decide if the image should be shown at the node? Something like a checkbox "show image" ?