Thank you for your bug report, the calendar issue is known as bug #1828491 and due to the fact that gnome-calendar doesn't handle ics files so upstream refuses to declare it as a calendar handler. The image viewer is a bug due to the change or .desktop naming which is about to be fixed
** Package changed: gnome-control-center (Ubuntu) => ubuntu-settings (Ubuntu) ** Changed in: ubuntu-settings (Ubuntu) Importance: Undecided => High ** Changed in: ubuntu-settings (Ubuntu) Status: Confirmed => In Progress -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-settings in Ubuntu. https://bugs.launchpad.net/bugs/1866000 Title: incorrect default apps for calendar and photos Status in ubuntu-settings package in Ubuntu: In Progress Bug description: Open settings > Default Applications and you'll see 'Text Editor' set for Calendar and 'Firefox' set for Photos, though Image Viewer and Shotwell are listed. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-control-center 1:3.35.91-0ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18 Uname: Linux 5.4.0-14-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu18 Architecture: amd64 CasperVersion: 1.441 CurrentDesktop: ubuntu:GNOME Date: Wed Mar 4 08:20:54 2020 LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200303) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-settings/+bug/1866000/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp