This is also being discussed upstream in https://github.com/flatpak/xdg- desktop-portal-gtk/issues/215 including some more specific details from investigating dbus activity.
** Bug watch added: github.com/flatpak/xdg-desktop-portal-gtk/issues #215 https://github.com/flatpak/xdg-desktop-portal-gtk/issues/215 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xdg-desktop-portal-gtk in Ubuntu. https://bugs.launchpad.net/bugs/1851807 Title: xdg-desktop-portal-gtk spams logs Status in xdg-desktop-portal-gtk package in Ubuntu: Confirmed Status in xdg-desktop-portal-gtk source package in Eoan: Confirmed Bug description: Every minute I get a log entry that looks like > xdg-desktop-por[ ]: Failed to get application states: GDBus.Error:org.freedesktop.portal.Error.Failed: Could not get window list: GDBus.Error: org.freedesktop.DBus.Error.AccessDenied: App introspection not allowed Upstream bug-report: https://github.com/flatpak/xdg-desktop-portal- gtk/issues/222 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: xdg-desktop-portal-gtk 1.4.0-2 ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 Uname: Linux 5.3.0-19-generic x86_64 NonfreeKernelModules: wl nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Nov 8 10:51:30 2019 InstallationDate: Installed on 2019-11-07 (0 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) ProcEnviron: TERM=screen-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/usr/bin/zsh SourcePackage: xdg-desktop-portal-gtk UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xdg-desktop-portal-gtk/+bug/1851807/+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