Currently, restrictions are set statically to individuals or teams.
It would be beneficial to be able to restrict the editing/viewing of a column based on those assigned to a People column.
An example is where a user submits a form, is assigned to a People column as the creator (by an automation), and editing certain columns should only be possible for that individual, while others should only be able to read/copy the data, while freely updating other columns for the same item.