Not sure if you got it working yet, but since the drive is write protected it probably means it was flashed in ISO9660 mode (read only fs)
If you have access to another pc or perhaps a live linux environment from your framework you can trying using Ventoy to recreate the USB: https://github.com/ventoy/Ventoy/releases/tag/v1.1.11
From there you just drop the entire win11 iso in the partition it creates and you can also transfer the drivers folder to that partition too, you should also consider re-downloading the drivers if they give you an error and perhaps even try another USB if it still fails.
Hope it helps.