Just to give you a clue. The icons in the comment editor and so are not displayed with me. I assume this is due to external services that have to be downloaded by the user (web fonts?). So this is actually a not relevant individual case.
On the following page I found some hints that might be of interest: https://www.bedeutungonline.de/dsgvo-und-wordpress-9-datenschutzluecken/
Hi Olaf,
many thanks for the hints and the link. This information seems to be very useful. The not displayed elements are actually part of the forum, but as I understood it these elements are executed with the help of a script. Probably some scripts have been disabled and therefore these controls are not displayed. Many script blockers are responsible for such problems.