The message function of the wiki is not a very reliable communications platform. I only by chance logged in today! For better support, try our mailing list: firstname.lastname@example.org or our Telegram group, which is linked at the bottom of our wiki page. To answer your question, I didn't even know Konqueror had KDE Connect support. I can't see any icon in my installation, so I don't know how to test my newer version. However, there is a newer version of KDE Connect in 18.04 than in 16.04, so if you do decide to upgrade, you will get a few new features!