Comment 16 for bug 1871030

Alternative workaround step 2, leaving system config files untouched:

Copy /usr/share/dbus-1/services/org.kde.kdeconnect.service to ~/.local/share/dbus-1/services/ and change the Exec= line of the copy to Exec=/usr/bin/false

When combined with step 1 of my workaround, this prevents kdeconnectd from launching in that user's sessions. It adds some clutter to the session log, as dbus-daemon complains that the executable is failing, but it gives up after several tries and seems to remain quiet after that.