Your system information

• Steam client version (build number or date): 1731433018
• Distribution (e.g. Ubuntu): Manjaro KDE
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: steam-logs.tar.gz
• GPU: AMD

Disclaimer, I have steam installed from flatpak, so I'm not sure if the issue is with the client, or the flatpak package of it.

Since some time ago (like few weeks) games stopped updating correctly, every update downloaded is reported as being corrupted, like this:

Steps for reproducing this issue:

1. Install a steam game that has pending update
2. Open steam, and go to downloads view
3. Observe that after downloading the update, it is regarded as being corrupted

What I've checked:

1. Checked dmesg logs looking for any sign of dying hard drive/filesystem corruption, found none
2. Did btrfs scrub and then btrfs check --readonly (on unmounted filesystem), both reported no errors
3. Tried cleaning steam download cache, no difference

I've looked into the logs myself, and something that might be related is the following:

[2025-06-14 16:29:12] [2025-06-14 16:29:12] uninstalled manifest found in /home/mikaka/.var/app/com.valvesoftware.Steam/.local/share/Steam/package/steam_client_ubuntu12 (1).
[2025-06-14 16:29:12] [2025-06-14 16:29:12] Found pending update
[2025-06-14 16:29:12] [2025-06-14 16:29:12] Instalowanie aktualizacji...
[2025-06-14 16:29:13] [2025-06-14 16:29:13] Rozpakowywanie pakietu...
[2025-06-14 16:29:18] [2025-06-14 16:29:18] Instalowanie aktualizacji...
[2025-06-14 16:29:18] [2025-06-14 16:29:18] BCommitUpdatedFiles: failed to create directory ./compatibilitytools.d/LegacyRuntime
[2025-06-14 16:29:18] [2025-06-14 16:29:18] BCommitUpdatedFiles: failed to process ./compatibilitytools.d
[2025-06-14 16:29:18] [2025-06-14 16:29:18] Błąd aktualizacji, przywracanie...
[2025-06-14 16:29:18] [2025-06-14 16:29:18] Weryfikowanie instalacji...
[2025-06-14 16:29:18] [2025-06-14 16:29:18] Verification complete

Does anyone have something similar happening?