In reply to Pierre.

+1 exactly this. Our WP clients have one or more author or editor role account with individually adjusted capabilities and a closed envelope with credentials for a full admin account for emergencies or if they want to contract somebody else.

Those clients will never see any settings for colors or typography or other things which can affect the CI in frontend. Most don’t even know that they use WordPress to post their press releases or process job applications or similar.

Those clients also will never be able to run the site on their own even with the best FSE, they have other core competences than building websites.