Bug: Update Manager offers LibreOffice APT updates even when only Flatpak version is installed

[pyz0123-cpu]

Distribution

Bug: Update Manager offers LibreOffice APT updates even when only Flatpak version is installed

Package version

6.6.6

Graphics hardware in use

No response

Frequency

Always

Bug description

Issue
Update Manager continues to show LibreOffice APT updates even though the user has removed the APT version and is using the Flatpak version exclusively.

Expected
Update Manager should not offer updates for software that is no longer installed.

Actual
LibreOffice updates appear in Update Manager despite the absence of any LibreOffice APT packages.

Impact
This creates misleading update notifications and confusion for users who switch from repo packages to Flatpaks.

Notes
Software Manager correctly detects the Flatpak version, but Update Manager does not reconcile APT vs Flatpak installations.

Steps to reproduce

see above

Expected behavior

see above

Additional information

I installed the Flatpak version of LibreOffice. This issue occurs regardless of whether the Flatpak is installed via terminal or Software Manager. Update Manager still offers APT updates for software that is not installed, and accepting the update would reinstall the APT version and create duplicate installations. This is misleading and inconsistent behavior.

Make update manager smarter. Update Manager should behave like KDE Discover: one unified update view that understands APT and Flatpak together, detects duplicates, and suppresses irrelevant updates.

Please add unified package awareness to Update Manager so it can detect when a Flatpak replaces a repo app, similar to how KDE Discover handles mixed backends.

[mtwebster]

This could mean there are binary packages that are part of the libreoffice source package still installed - often language packs can do this. What is listed under the 'packages' tab in the bottom view of the update manager when you select the libreoffice row? If the package had files installed to /etc it could still be considered installed (use apt purge to ensure any remaining configuration files are removed)

There is no overlap between flatpak updates and apt updates - the update sources are completely separate.

[pyz0123-cpu]

Thank you! Just so you know, I understand how APT packages, residual configs, and Flatpak separation work.
But in this case, everything is fully purged, and Update Manager is still surfacing LibreOffice as if it were installed. That’s why I’m reporting it: even with a clean system, the update appears. So while the package explanation makes sense in general, this specific behavior still looks like a bug in how Update Manager detects or displays available updates.

Additionally, the new right‑click option to ignore future updates is helpful, and I appreciate having that control. But it doesn’t change the underlying issue: Update Manager is still surfacing updates for packages that no longer exist on the system — and in this case, it will even attempt to re‑install a package I’ve already purged on purpose. So while the ignore option is a good workaround, the behavior itself still looks like a bug in how Update Manager detects or interprets installed packages