(This is a post to separate questions from one of my old posts which put three irrelevant questions into one post. The question has already been answered in the original post. Link to the answer.)
I use the KDE spin of Fedora. In the new version of Dolphin included in Fedora 34 a single click directly opens a file or a directory. Is there any way to change the behavior to the regular “single click selects a file, double click opens a file” mode?