@LeandroStanger That is because you have manually added a bunch of flatpak repos (possibly by downloading and installing .flatpak or .flatpakref files):
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= Flatpak remotes =
===================
flathub Flathub https://flathub.org/repo/ 1 user
gnome-nightly - http://sdk.gnome.org/nightly/repo 1 user
qupzilla - https://qupzilla.com/flatpak/repo/ 1 user
sweethome-repo2 - file:///sysroot/home/leandrostanger/repo 1 user,no-gpg-verify
org.pitivi.Pitivi-origin Pitivi http://flatpak.pitivi.org/ 0 user,no-enumerate
eos-apps Endless Applications https://ostree.endlessm.com/ostree/eos-apps 1 system
eos-runtimes Endless OS and Runtimes https://ostree.endlessm.com/ostree/eos-amd64 1 system
eos-sdk Endless Apps Runtimes https://ostree.endlessm.com/ostree/eos-sdk 1 system
flathub Flathub http://flathub.org/repo/ 1 system
flathub_1 Central repository of Flatpak applications https://flathub.org/repo/ 1 system
gnome Gnome Stable Runtimes http://sdk.gnome.org/repo/ 1 system
gnome-1 Gnome Stable Runtimes https://sdk.gnome.org/repo/ 1 system
gnome-apps Gnome Stable Applications http://sdk.gnome.org/repo-apps/ 1 system
gnome-nightly GNOME Nightly Runtime https://sdk.gnome.org/nightly/repo/ 1 system
kderuntime KDE Runtimes http://distribute.kde.org/flatpak-testing/ 1 system
com.uploadedlobster.peek-origin Peek http://flatpak.uploadedlobster.com 0 system,no-enumerate
org.gnome.Builder-origin GNOME Builder https://sdk.gnome.org/nightly/repo-apps/ 0 system,no-enumerate
org.gnome.Recipes-origin GNOME Recipes https://matthiasclasen.github.io/recipes-releases/repo 0 system,no-enumerate
org.mozilla.FirefoxNightly-1-origin Firefox Nightly https://firefox-flatpak.mojefedora.cz/repo/ 0 system,no-enumerate
org.mozilla.FirefoxNightly-2-origin Firefox Nightly https://firefox-flatpak.mojefedora.cz/repo/ 0 system,no-enumerate
org.mozilla.FirefoxNightly-3-origin Firefox Nightly https://firefox-flatpak.mojefedora.cz/repo/ 0 system,no-enumerate
org.mozilla.FirefoxNightly-origin Firefox Nightly https://firefox-flatpak.mojefedora.cz/repo/ 0 system,no-enumerate
org.musicbrainz.Picard-origin Flatpaks by Bochecha https://www.daitauha.fr/static/flatpak/repo-apps/ 0 system,no-enumerate
org.telegram.TelegramDesktopDevel-origin Telegram https://jgrulich.fedorapeople.org/telegram/repo/ 0 system,no-enumerate
org.telegram.desktop-1-origin Telegram https://jgrulich.fedorapeople.org/telegram/repo/ 0 system,no-enumerate
Here are the repos that we officially support:
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= Flatpak remotes =
===================
eos-apps Endless Applications https://ostree.endlessm.com/ostree/eos-apps 1 system
eos-runtimes Endless OS and Runtimes https://ostree.endlessm.com/ostree/eos-amd64 1 system
eos-sdk Endless Apps Runtimes https://ostree.endlessm.com/ostree/eos-sdk 1 system
flathub Flathub https://flathub.org/repo/ 1 system
gnome Gnome Stable Runtimes http://sdk.gnome.org/repo/ 1 system
gnome-apps Gnome Stable Applications http://sdk.gnome.org/repo-apps/ 1 system
Of course, you are welcome to try any others that you like, but if you have multiple repos that provide the same app, they will show as duplicates. And, if there are problems with specific repos other than those that we suggest, you would have to work with the upstream maintainers of those repos. I see that some of the repos you have are for “nightly” builds, which tend to be unstable and more subject to breakage.
If you are having problems updating apps in any of our supported repos, you may need to work around an ostree concurrency bug as described on https://community.endlessos.com/t/unable-to-update-install-anything/3794/46.
