Davo-
I have two machines running 19.10. On one I installed appmenu-gtk2-module and GTK2 apps now load on that machine instantly.
OK, Chris, are you saying that just installing appmenu-gtk2-module makes the problem go away or are you then using it to put the dbus-launcher env var in front of your launch commands ?
The askubuntu links seem to suggest the latter approach ....
Big difference, if it is just a case of adding appmenu~ to the dependencies list, wow, I agree, you have a solution ! But if thats just a tool to help make the command to launch any Lazarus app in its own DBus env, thats not really viable. We cannot suggest to end user that they run a separate DBus instance with every app they run.
(and by the way, I do like your determination to get this solved ! )
Davo