I can verify that in Bionic (with the deb) the application shows in Gnome's task bar as a separate application, not grouped under Chromium, and that in Lunar (with the snap) it shows in Gnome's task bar grouped under the Chromium button.
However, 1. Wmctrl shows that the window classes and names are consistent, --> Lunar <-- 0x01c00003 0 chromium.Chromium 0x01c00011 0 crx_mdpkiolbdkhdjpekf.Chromium --> Bionic <-- 0x01c00003 0 chromium-browser.Chromium-browser 0x01c00019 0 crx_mdpkiolbdkhdjpekf.Chromium-browserChat 2. The bug is absent from both Unity and Icewm (see attachments). So I think this is a regression in Gnome Shell from Ubuntu 20.04 vs Ubuntu 18.04. ** Also affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Attachment added: "ice.png" https://bugs.launchpad.net/bugs/2007652/+attachment/5664797/+files/ice.png ** Attachment added: "unity.png" https://bugs.launchpad.net/bugs/2007652/+attachment/5664798/+files/unity.png -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2007652 Title: [snap] PWA don't launch as applications, just another chromium window To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/2007652/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs