Please try these. You can stop at any step if the problem goes away...

1. Reboot, make sure you still see stuttering and then run these
commands:

   lspci -k > lspcik.txt
   journalctl -b0 > journal.txt

   and attach the resulting text files here.

2. Completely uninstall these extensions:

   cpuf...@zdyb.tk', 'impatie...@gfxmonk.net', 'clipboard-
indica...@tudmotu.com'

   then reboot.

3. Disable 'Ubuntu AppIndicators' in the 'Extensions' app, then log out
and in again.

4. Edit /etc/environment and add a new line:

   MESA_LOADER_DRIVER_OVERRIDE=i965

   then reboot.

** Summary changed:

- Overview stuttering with 4K & Intel
+ Overview stuttering with 3K & Intel

** Changed in: gnome-shell (Ubuntu)
       Status: New => Incomplete

** Tags added: performance

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https://bugs.launchpad.net/bugs/1890533

Title:
  Overview stuttering with 3K & Intel

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