A problem was detected in our docker devOps setup in Drupal 10.3:
Fatal error: Uncaught Error: Call to a member function inTransaction() on null in /var/www/html/public/core/modules/mysql/src/Driver/Database/mysql/Connection.php on line 470
The solution was to remove the "develop" from our docker compose file (PHP_XDEBUG_MODE).
More in this thread: https://www.drupal.org/project/drupal/issues/3405976