BuzzPCSOS There was an issue during the update or installation process. Please try again later.

Kudos to anyone who has never had issues with Discover or Gnome Software, updates to software or firmware.

Firmware updates are known to sometimes have niggles like this due to issues with fwupd itself. Try running firmware updates via command line as brent suggested.

First run fwupdmgr refresh && fwupdmgr get-updates
That will update the metadata and fetch any updates available.

If you see there are updates available, then run fwupdmgr install and choose the number for the device that has an update available, if necessary.

If you continue to run into problems, I suggest searching through the bug reports for the fwupd project.