This sounds like it might be related to focus stealing prevention. That is the code which prevents new windows getting focus if the system thinks you're busy with something else, so new windows would only get in the way.
** Also affects: mutter (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1844809 Title: clicking desktop notifications to bring up linked up works intermittently in 19.10? Status in gnome-shell package in Ubuntu: New Status in mutter package in Ubuntu: New Bug description: This is not going to be the highest quality bug report :-(, since it's an intermittent issue and I don't know exactly what triggers it and I can't even say with 100% certainty that it's new in 19.10, but I _think_ it is so I wanted to give people a heads-up just in case. I just upgrade to 19.10 from 19.04. I use the Google Hangouts Chrome app. When I get a text message in Hangouts it pops up a desktop notification. Usually clicking on the notification causes the Hangouts window to open. When I clicked on the notification nothing happened. Then I got a second notification later and clicked on that one and the window opened as it should have. Then I got a third notification later and clicked on that one and again the window didn't open. I _believe_, though I can't say for certain, that this worked consistently in 19.04. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: gnome-shell 3.34.0-1ubuntu1 ProcVersionSignature: Ubuntu 5.3.0-10.11-generic 5.3.0-rc8 Uname: Linux 5.3.0-10-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Sep 20 11:20:19 2019 DisplayManager: gdm3 InstallationDate: Installed on 2019-09-12 (7 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) RelatedPackageVersions: mutter-common 3.34.0-2ubuntu1 SourcePackage: gnome-shell UpgradeStatus: Upgraded to eoan on 2019-09-20 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1844809/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp