caitlinreid New York, NY
In 2023, the migration of a site from D9 to D10 produced the error "Entity/field definitions: Error on Mismatched entity and/or field definitions." with relation to the entity field "Moderation state" related to the Workbench Moderation module. A lot of functionality from Workbench has been migrated to D10 core, so it may have been overlooked.
Answer #6 was used to solve this issue by my colleague! Wanted to mention it here, as this forum aided in solving our issue.