thanks a lot @j-ed and @rogerco
yes, I also didn’t realize that the suggestions would be a separate app and looked for an config setting in the files module.
also @j-ed, please be assured that I searched for this before I posted my question and keep in mind that the technology does not always work as expected/desired.
Also I looked into the documentation but as the solution is an appearently undcoumented config switch, I couldn’t find it…
Thanks a lot for you answers and helping me out! - as you both seem to be fairly experiences Nextcloud users, maybe you have an idea what I can do about my notifications-problem ?