Browser "Save as pdf" option switches focus to search when I start to rename the file

tried firefox, chrome, vivaldi, edge. When I try to “print” a web page, using the “save as pdf” option, I then try to rename the file name presented. Selecting the presented filename, I then start to enter the desired new filename. It then goes into search mode, rather than letting me continue to type in the new name. I do not have this problem when using the Gnome or Ubuntu desktops. The problem exhibited itself when I upgraded from Ubuntu 21.10 to Ubuntu 22.04 .