publish_state and unpublish_state are missing and the status report showed "Mismatched entity and/or field definitions".

Updated patch.

We were getting the following:

Mismatched entity and/or field definitions
The following changes were detected in the entity type and field definitions.
Taxonomy term
The Publish state field needs to be installed.
The Unpublish state field needs to be installed.

We attempted to remediate by simply uninstalling and reinstalling the module and exporting the config, but we received the error from https://www.drupal.org/project/scheduler_content_moderation_integration/... →

For some reason, it became very clear that many of our sites were missing one or more of updates 9001, 9002, and 9003. I am not sure if this was due to a developer's error in not exporting the configuration and commiting the configuration to the codebase, or if it's an issue with Scheduler dropping off updates later in its version life. I'd suspect it's the former because the current scheduler still has these updates in the code.

We had to do the following:

drush php:eval "require_once 'modules/contrib/scheduler_content_moderation_integration/scheduler_content_moderation_integration.install';"

drush php:eval "require_once 'modules/contrib/scheduler_content_moderation_integration/scheduler_content_moderation_integration.install'; scheduler_content_moderation_integration_update_9001();"

drush php:eval "require_once 'modules/contrib/scheduler_content_moderation_integration/scheduler_content_moderation_integration.install'; scheduler_content_moderation_integration_update_9002();"

drush php:eval "require_once 'modules/contrib/scheduler_content_moderation_integration/scheduler_content_moderation_integration.install'; scheduler_content_moderation_integration_update_9003();"

drush cex -y

Then commit the new configuration.

We encountered this same problem in two different sites after updating the module.

I would be willing to accept that we did a mistake once and forgot to export configurations once after the database updates but these sites were updated by two different developers and both sites are reporting mismatch for taxonomy terms.

Mismatched entity and/or field definitions
The following changes were detected in the entity type and field definitions.
Taxonomy term

The Publish state field needs to be installed.
The Unpublish state field needs to be installed.

I'll flag that we recently ran into this problem as well. I ended up running the update hooks programmatically and that resolved the problem.