I upgraded from 19.04 to 19.10 a couple days ago and the systems works cleanly and smoothly. Congratulations for this great work.
Before upgrading, though, I read on some place on the net that the boot time would be reduced considerably, was is definitely not the case for my Dell Inspiron Laptop. The boot time before upgrading has been some 80 seconds and continues exactly the same.
Bootup is not yet finished
(org.freedesktop.systemd1.Manager.FinishTimestampMonotonic=0).
Please try again later.
Hint: Use 'systemctl list-jobs' to see active jobs