Gnome software informed me that the Linux Vendor Firmware service had a firmware update—I restarted to install it—during the update, I got a message saying that the update failed. It looks like the version has been updated correctly to 1.2.5, although the release date hasn’t. Everything seems to work well. I would like to try to force a reinstallation of the firmware, but I am not sure how. Maybe the most sensible thing to do is to just wait until the next one.
Maybe this is a better question for a Dell forum, but I thought there might be some ideas about it here.