Comment 12 for bug 1869572

I have the same problem, even worse with a delay of 25 seconds between program start and dock update.

This is a fresh install of 20.04 LTS on a clean laptop with a wiped hard disk.

schorsch@jbook:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal

schorsch@jbook:~$ uname -a
Linux jbook 5.4.0-29-generic #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

The only thing I did after the new installation was installing the dash-to-panel Gnome extension. Once, I deactivated that extension and the Ubuntu Dock showed again, I noticed the delay. However, I cannot say for sure if the delay has been there from the beginning.

I completely removed the dash-to-panel extension using apt, but the Ubuntu Dock delay is still there.