I’m assuming this is not desired behavior, but feel free to correct me:
We have a text table in the rich text field of an entity (which we use for our documents). When the entity is locked, it is still possible to add rows and columns to this table, but it doesn’t seem to be possible to delete these rows or columns (i.e. the “…” menu does not appear in the cells). I would expect for it to be impossible to add rows or columns when the entity is locked.