In KDE, if you try to report a crash through ABRT (“Problem Reporting”), it asks you for a Bugzilla API key. However, due to recent changes in KWallet, those settings won’t be saved, and you’ll need to provide this API key for each new crash report (if ABRT was closed and started again in the meantime). You’ll see a red error message in the API key prompt dialog saying:
Secret Service is not available, your settings won’t be saved!
KWallet introduced Secret Service API support in version 5.97.0, but only using encrypted communication. Some applications, like ABRT, use a “plain” algorithm for secret transfer. That was supported earlier, but the aforementioned change in KWallet dropped its support. Fortunately, a recent update in KWallet brings back support for the plain algorithm, but that’s waiting for a new upstream release and hasn’t reached Fedora yet.