*** This bug is a duplicate of bug 1718238 ***
https://bugs.launchpad.net/bugs/1718238
ok so my home machine says wayland and does not have the problem. So
maybe something with x11.
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*** This bug is a duplicate of bug 1718238 ***
https://bugs.launchpad.net/bugs/1718238
ok I can confirm that from my work machine turning the "application
menu" on from gnome tweak tool fixes it. If I turn it off the artefact
shows up again. It happens in real time as I toggle the switch.
If
I'm not sure how to reply to individual comments but to add to comment
#4, I am the person who reported this on askubuntu and the 4th button is
the menu button. I use Gnome Tweaks and have "Application Menu" turned
off under the "Top Bar" settings. I'm not on my work machine now so I
can't see what