Config name should be module name not word 'simple'. It's very confusing and hard to find in exported configuration files.
Use 'change_user_route.settings' instead of 'simple.settings'.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
The patch works well but needs to be modified slightly for D10 compatibility (note that automated patches in https://www.drupal.org/project/change_user_route/issues/3286445 → cannot be applied upon this patch).