$ signal-desktop &
..
(signal-desktop:181107): libnotify-WARNING **: 08:44:20.567: Failed to
connect to proxy
[181107:1021/084445.667395:ERROR:libnotify_notification.cc(50)]
notify_notification_show: domain=1250 code=24 message="Error calling
StartServiceByName for org.freedesktop.Notifications: Timeout was
reached"
This was because I didn't have a notification daemon in my i3
based
setup. Searching the bug track lead me to this
issue which
suggested either disabling notifications in the app, or installing a
notification daemon. Since I find not having notification an awesome
feature of any desktop or phone, I went ahead and disabled the
notifications in the File
→ Preferences...
dialogue.
An lo and behold, no more freezes.