I concur. There needs to be an explanation of how to check the version, and there needs to be instructions showing how to perform the update. 99% of users will need to do this when setting up a new machine. 1. Go to this page
https://help.prusa3d.com/article/how-to-update-firmware-mk4-xl_453086 2. Download the new firmware to your local machine. 3. Find the USB drive provided with the XL machine, plug it into your local machine. 4. Delete any older version of the firmware (.bbf file) that you see on the USB drive. 5. Copy the new firmware from your local machine to the USB drive. 6. Insert the USB drive to the XL display. 7. Power up the XL machine. The display will see the new version on the USB and ask if you want to install. 8. Confirm the installation.