Software recommends a reboot even if fwupd fails
Software 3.38.1 (on Ubuntu 21.04) offers a firmware update. That update fails for unknown reasons (as reported in fwupd/fwupd#3667).
Despite that failure, Software proposes a reboot.
I don't know how Software invokes fwupd, but the command line fwupdmgr does report the error, which leads me to believe that the error should be exposed to Software as well.
snafu$ sudo fwupdmgr update
Devices with no available firmware updates:
• Thunderbolt host controller
• THNSN51T02DU7 NVMe TOSHIBA 1024GB
• UEFI dbx
Devices with the latest available firmware version:
• Thunderbolt controller in Dell dock
• Package level of Dell dock
• RTS5413 in Dell dock
• RTS5487 in Dell dock
• VMM5331 in Dell dock
• WD19TB
Upgrade available for System Firmware from 1.16.1 to 1.17.0
Precision 5510 must remain plugged into a power source for the duration of the update to avoid damage. Continue with update? [Y|n]: y
Downloading… [***************************************]
Decompressing… [***************************************]
No supported devices found
snafu$ echo $?
1