OK, I can confirm this freeze up happens on a VM running 19.10. But not every time I start Lazarus, sometimes it starts and continues to run normally. My rough guess is that it fails, for me, on a Virtual Box allocated 4G ram one in four times. Using Lazarus 2.0.6 debs from sourceforge.
I have seen four such freezups now, in each case an initial startup, have not seen it happen in a restart. I blow away the config files between tries to ensure an initial start.
(I have been running Fedora 30 in a VM for a week now without any sign of this issue, about the same level of gnome and release time, that may indicate the freeze up is a Ubuntu only thing ?)
Davo
Davo